Updated on 2024/10/19

写真a

 
IKAI, Tomoyuki
 
Organization
Graduate School of Engineering Molecular and Macromolecular Chemistry 2 Professor
Graduate School
Graduate School of Engineering
Undergraduate School
School of Engineering Chemistry and Biotechnology
Title
Professor
External link

Degree 1

  1. 博士(工学) ( 2008.3   名古屋大学 ) 

Research Interests 16

  1. polysaccharide

  2. chromatography

  3. chirality

  4. chiral recognition

  5. enantioseparation

  6. Helix

  7. 機能性高分子

  8. 高次構造制御

  9. 蛍光

  10. 機能高分子材料

  11. 光学分割

  12. 不斉選択性

  13. ポリマー

  14. ポリアセチレン

  15. センシング

  16. らせん

Research Areas 3

  1. Others / Others  / Polymer Chemistry

  2. Others / Others  / Polymer/Textile Materials

  3. Nanotechnology/Materials / Polymer chemistry

Current Research Project and SDGs 2

  1. クロマトグラフィーによる光学分割

  2. 新規ラセン高分子・超分子の合成と機能化

Research History 4

  1. Nagoya University   Graduate School of Engineering   Associate professor

    2019.4

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  2. Kanazawa University   Associate professor

    2014.7 - 2019.3

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    Country:Japan

  3. Kanazawa University   Assistant Professor

    2009.4 - 2014.6

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    Country:Japan

  4. 助教

    2008.4

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    Country:Japan

Education 3

  1. Nagoya University   Graduate School, Division of Engineering

    2005.4 - 2008.3

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    Country: Japan

  2. Nagoya University   Graduate School, Division of Engineering

    2003.4 - 2005.3

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    Country: Japan

  3. Nagoya University   Faculty of Engineering

    1999.4 - 2003.3

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    Country: Japan

Professional Memberships 6

  1. 高分子学会

  2. 日本化学会

  3. セルロース学会

  4. THE MATERIALS RESEARCH SOCIETY OF JAPAN

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  5. THE SOCIETY OF POLYMER SCIENCE, JAPAN

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  6. THE CHEMICAL SOCIETY OF JAPAN

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Committee Memberships 2

  1.   蔵書整理アドバイザー  

    2020.4 - 2021.3   

  2.   クラス担当1年 (G30を兼ねる)  

    2020.4 - 2021.3   

Awards 15

  1. MCAsia 2022 Poster Award

    2022.9   Synthesis of Single-Handed Spiro-Conjugated Helical Ladder Polymers

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  2. 第15回わかしゃち奨励賞 最優秀賞

    2020.12   愛知県経済産業局   生体に学び、生体を超越する自己修復性ラセン連結超分子の開発

    井改知幸

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  3. 第9回新化学技術研究奨励賞

    2020.10   公益社団法人 新化学技術推進協会  

  4. The Japan Association for Chemical Innovation Award for Young Researchers

    2020.10   The Japan Association for Chemical Innovation (JACI)  

    Tomoyuki Ikai

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  5. 日本化学会第98春季年会 若い世代の特別講演証

    2018.3   日本化学会  

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  6. 日本化学会第98春季年会 若い世代の特別講演証

    2018.3  

    井改知幸

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  7. 7. 第63回高分子研究発表会(神戸)ヤングサイエンティスト賞 (2017年度)

    2017.7   高分子学会関西支部  

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  8. 第63回高分子研究発表会(神戸)ヤングサイエンティスト賞

    2017.7  

    井改知幸

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  9. 平成27年度高分子研究奨励賞

    2016.5   高分子学会  

    井改知幸

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    Award type:Award from Japanese society, conference, symposium, etc. 

  10. 平成27年度Polymer Journal論文賞-日本ゼオン賞

    2016.5   高分子学会  

    井改知幸

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    Award type:Award from Japanese society, conference, symposium, etc. 

  11. 第25回日本MRS年次大会奨励賞

    2016.1   日本MRS  

    井改知幸

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    Award type:Award from Japanese society, conference, symposium, etc. 

  12. 平成27年度「秀でた6大利用成果」最優秀賞

    2016.1   ナノテクノロジープラットフォーム  

    井改知幸

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    Award type:Award from Japanese society, conference, symposium, etc. 

  13. 第1回若手研究者奨励賞

    2015.12   金沢大学イノベーション推進機構協力会  

    井改知幸

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    Award type:Award from Japanese society, conference, symposium, etc. 

  14. 日本化学会第94春季年会 優秀講演賞(学術)(2013年度)

    2014.3   日本化学会  

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  15. 日本化学会第 94 春季年会(2014)優秀講演賞(学術)

    2014.3  

    井改知幸

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Papers 73

  1. 2,2´-Tethered Binaphthyl-Embedded One-Handed Helical Ladder Polymers: Impact of the Tether Length on Helical Geometry and Chiroptical Property Reviewed

    Tomoyuki Ikai, Namiki Mishima, Takehiro Matsumoto, Sayaka Miyoshi, Kosuke Oki, Eiji Yashima

    Angew. Chem., Int. Ed.   Vol. 63 ( 10 ) page: e202318712   2024.2

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    DOI: 10.1002/anie.202318712

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  2. Tandem Isomerization/α,β-Site-Selective and Enantioselective Addition Reactions of N-(3-Butynoyl)-3,5-dimethylpyrazole Induced by Chiral π–Cu(II) Catalysts Reviewed

    Weiwei Guo, Masahiro Hori, Yoshihiro Ogura, Kazuki Nishimura, Kosuke Oki, Tomoyuki Ikai, Eiji Yashima, Kazuaki Ishihara

    J. Am. Chem. Soc.   Vol. 145 ( 49 ) page: 27080 - 27088   2023.11

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    DOI: 10.1021/jacs.3c10820

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  3. Control of One-Handed Helicity in Polyacetylenes: Impact of an Extremely Small Amount of Chiral Substituents Reviewed

    Tomoyuki Ikai, Yuki Morita, Tsuyoshi Majima, Shoki Takeda, Ryoma Ishidate, Kosuke Oki, Nozomu Suzuki, Hajime Ohtani, Hiromi Aoi, Katsuhiro Maeda, Kento Okoshi, Eiji Yashima

    J. Am. Chem. Soc.   Vol. 145 ( 45 ) page: 24862 - 24876   2023.11

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/jacs.3c09308

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  4. One-Handed Helical Polyacetylenes Bearing Axially-Chiral 2-Arylpyridyl-N-Oxide Units for Efficient Chromatographic Enantioseparation of Chiral Aromatic and Aliphatic Alcohols Invited Reviewed

    Ikai, Tomoyuki Ito, Masaki Oki, Kosuke Suzuki, Nozomu Yashima, Eiji

    Angewandte Chemie International Edition   Vol. 62   page: e202306252   2023.6

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.202306252

    DOI: 10.1002/anie.202306252

    Other Link: https://doi.org/10.1002/anie.202306252

  5. Remote Control of One-Handed Helicity in Polyacetylenes through Flexible Spacers in Water: Impact of the Spacer Length Reviewed

    Tomoyuki Ikai, Koshi Nakamura, Kosuke Mizumoto, Kosuke Oki, Eiji Yashima

    Angewandte Chemie International Edition   Vol. 62   page: e202301127   2023.3

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    DOI: 10.1002/anie.202301127

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  6. Defect-Free Synthesis of a Fully π-Conjugated Helical Ladder Polymer and Resolution into a Pair of Enantiomeric Helical Ladders Reviewed

    Tomoyuki Ikai, Sayaka Miyoshi, Kosuke Oki, Ranajit Saha, Yuh Hijikata, Eiji Yashima

    Angewandte Chemie International Edition   Vol. 62   page: e202301962   2023.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.202301962

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  7. Stereospecific Synthesis of Enantiopure [6]Helicene Containing a Seven‐Membered Ring and [7]Helicene via Acid‐Promoted Stepwise Alkyne Annulations of Doubly Axial‐Chiral Precursors Reviewed

    Tomoyuki Ikai, Kosuke Oki, Shoya Yamakawa, Eiji Yashima

    Angewandte Chemie International Edition   Vol. 62   page: e202301836   2023.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/anie.202301836

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  8. One‐Handed Helical Tubular Ladder Polymers for Chromatographic Enantioseparation Reviewed International coauthorship

    Wei Zheng, Kosuke Oki, Ranajit Saha, Yuh Hijikata, Eiji Yashima, Tomoyuki Ikai

    Angewandte Chemie International Edition   Vol. 62 ( 11 ) page: e202218297   2023.2

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/anie.202218297

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  9. Consecutively-Fused Single, Double, and Triple Expanded Helicenes Invited Reviewed International coauthorship

    Wei Zheng, Tomoyuki Ikai, Kosuke Oki, Eiji Yashima

    Natural Sciences     2022.3

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/ntls.20210047

  10. Supramolecular Helical Assemblies of Dirhodium(II) Paddlewheels with 1,4-Diazabicyclo[2.2.2]octane: A Remarkable Substituent Effect on the Helical Sense Preference and Amplification of the Helical Handedness Excess of Metallo-Supramolecular Helical Polymers. Reviewed

    Okuda S, Ousaka N, Iwata T, Ishida R, Urushima A, Suzuki N, Nagano S, Ikai T, Yashima E

    Journal of the American Chemical Society   Vol. 144 ( 6 ) page: 2775 - 2792   2022.2

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    We report unique coordination-driven supramolecular helical assemblies of a series of dirhodium(II) tetracarboxylate paddlewheels bearing chiral phenyl- or methyl-substituted amide-bound m-terphenyl residues with triethylene glycol monomethyl ether (TEG) or n-dodecyl tails through a 1:1 complexation with 1,4-diazabicyclo[2.2.2]octane (DABCO). The chiral dirhodium complexes with DABCO in CHCl3/n-hexane (1:1) form one-handed helical coordination polymers with a controlled propeller chirality at the m-terphenyl groups, which are stabilized by intermolecular hydrogen-bonding networks between the adjacent amide groups at the periphery mainly via a cooperative nucleation-elongation mechanism as supported by circular dichroism (CD), vibrational CD, and variable-temperature (VT) absorption and CD analyses. The VT visible-absorption titrations revealed the temperature-dependent changes in the degree of polymerization. The columnar supramolecular helical structures were elucidated by X-ray diffraction and atomic force microscopy. The helix sense of the homopolymer carrying the bulky phenyl and n-dodecyl substituents is opposite those of other chiral homopolymers despite having the same absolute configuration at the pendants. A remarkably strong "sergeants and soldiers"(S&S) effect was observed in most of the chiral/achiral copolymers, while the copolymers of the bulky chiral phenyl-substituted dirhodium complexes with n-dodecyl chains displayed an "abnormal"S&S effect accompanied by an inversion of the helix sense, which could be switched to a "normal"S&S effect by changing the solvent composition. A nonracemic dirhodium complex of 20% enantiomeric excess bearing the less bulky chiral methyl substituents with n-dodecyl chains assembled with DABCO to form an almost one-handed helix (the "majority rule"(MR) effect), whereas the three other nonracemic copolymers showed a weak MR effect.

    DOI: 10.1021/jacs.1c12652

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  11. Emergence of Highly Enantioselective Catalytic Activity in a Helical Polymer Mediated by Deracemization of Racemic Pendants Reviewed

    Ikai Tomoyuki, Ando Mitsuka, Ito Masaki, Ishidate Ryoma, Suzuki Nozomu, Maeda Katsuhiro, Yashima Eiji

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   Vol. 143 ( 32 ) page: 12725 - 12735   2021.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Journal of the American Chemical Society  

    Any polymers composed of racemic repeating units are obviously optically inactive and hence chiral functions, such as asymmetric catalysis, will not be expected at all. Contrary to such a preconceived notion, we report an unprecedented helical polymer-based highly enantioselective organocatalyst prepared by polymerization of a racemic monomer with no catalytic activity. Both the right- and left-handed helical poly(biarylylacetylene)s (PBAs) composed of dynamically racemic 2-arylpyridyl-N-oxide monomer units with N-oxide moieties located in the vicinity of the helical polymer backbone can be produced by noncovalent interaction with a chiral alcohol through deracemization of the biaryl pendants. The macromolecular helicity and the axial chirality induced in the PBAs are retained ("memorized") after complete removal of the chiral alcohol. Accordingly, the helical PBAs with dual static memory of the helicity and axial chirality show remarkable enantioselectivity (86% ee) for the asymmetric allylation of benzaldehyde. The enantioselectivity is slightly lower than that (96% ee) of the homochiral PBAs prepared from the corresponding enantiopure (R)- and (S)-monomers, but is comparable to that (88% ee) of the helical PBA composed of nonracemic monomers of ca. 60% ee.

    DOI: 10.1021/jacs.1c05620

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  12. Synthesis of Single‐Handed Helical Spiro‐Conjugated Ladder Polymers through Quantitative and Chemoselective Cyclizations Reviewed International coauthorship

    Wei Zheng, Tomoyuki Ikai, Eiji Yashima

    Angewandte Chemie International Edition     2021.3

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    DOI: 10.1002/anie.202102885

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  13. Racemic Monomer‐Based One‐Handed Helical Polymer Recognizes Enantiomers through Auto‐Evolution of Its Helical Handedness Excess Reviewed

    Tomoyuki Ikai, Tomoyuki Kurake, Shogo Okuda, Katsuhiro Maeda, Eiji Yashima

    Angewandte Chemie International Edition   Vol. 60 ( 9 ) page: 4625 - 4632   2021.2

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    DOI: 10.1002/anie.202014946

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  14. Inner-Bond-Cleavage Approach to Figure-Eight Macrocycles from Planar Aromatic Hydrocarbons Reviewed International coauthorship

    Yoshina, Reiji Hirano, Junichiro Nishimoto, Emiko Sakamoto, Yuki Tajima, Keita Minabe, Shunsuke Uyanik, Muhammet Ishihara, Kazuaki Ikai, Tomoyuki Yashima, Eiji Omine, Takuya Ishiwari, Fumitaka Saeki, Akinori Kim, Jinseok Oh, Juwon Kim, Dongho Liu, Guanting Yasuda, Takuma Shinokubo, Hiroshi Fukui, Norihito

    J. Am. Chem. Soc.     2024.9

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    DOI: 10.1021/jacs.4c07985

  15. Circularly Polarized Luminescence Chirality Inversion and Dual Anticounterfeiting Labels Based on Fluorescent Cholesteric Liquid Crystal Particles Reviewed

    Jialei He, Mitsuo Hara, Ryosuke Ohnuki, Shinya Yoshioka, Tomoyuki Ikai, Yukikazu Takeoka

    ACS Applied Materials & Interfaces   Vol. 16 ( 33 ) page: 43991 - 44003   2024.7

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    DOI: 10.1021/acsami.4c08331

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  16. Helix-Sense-Selective Memory Polymerization of Biphenylylacetylenes Bearing Carboxy and Amino Groups in Water.

    Okuda S, Ikai T, Okutsu H, Ando M, Hattori M, Ishidate R, Yashima E

    Angewandte Chemie (International ed. in English)     page: e202412752   2024.7

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    DOI: 10.1002/anie.202412752

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  17. Synthesis of sterically congested double helicene by alkyne cycloisomerization Reviewed

    Junichiro Hirano, Sayaka Miyoshi, Eiji Yashima, Tomoyuki Ikai, Hiroshi Shinokubo, Norihito Fukui

    Chemical Communications   Vol. 60 ( 47 ) page: 6035 - 6038   2024.6

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    Alkyne cycloisomerization of 2,7,10,15-tetra(ortho-alkynylphenyl)benzo[g,p]chrysene containing bulky 4-alkoxy-2,6-dimethylphenyl groups at the alkyne terminals selectively proceeded at the sterically crowded bay-region.

    DOI: 10.1039/d4cc01573h

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  18. Chiral Luminophore Guided Self-Assembly of Achiral Block Copolymers for the Amplification of Circularly Polarized Luminescence Reviewed

    Sheng-Wei Shao, Puhup Puneet, Ming-Chia Li, Tomoyuki Ikai, Eiji Yashima, Rong-Ming Ho

    ACS Macro Letters   Vol. 13 ( 6 ) page: 734 - 740   2024.5

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    DOI: 10.1021/acsmacrolett.4c00188

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  19. Secondary Structure Modulation of Triptycene-Based One-Handed Helical Ladder Polymers through π-Extension of Achiral Segments Invited Reviewed

    Tomoyuki Ikai, Atsuya Tanaka, Takumi Shiotani, Kosuke Oki, Eiji Yashima

    Organic Materials   Vol. 5 ( 4 ) page: 184 - 190   2023.11

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Georg Thieme Verlag KG  

    A series of enantiopure triptycene-based one-handed helical ladder polymers containing π-extended achiral segments with naphthalene, fluorene, and carbazole spacers was synthesized through quantitative and chemoselective ladderization of the corresponding precursor polymers with random-coil conformations. The helical handedness (right- or left-handed) and geometry (loose coil or ribbon) of the resulting ladder polymers were readily modulated by tuning the structure of the achiral spacers despite the incorporation of the same point chirality of the triptycene unit. All the helical secondary structures are stable and robust due to the shape-persistent ladder structures, showing the characteristic and environment-independent chiroptical properties.

    DOI: 10.1055/a-2208-4389

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  20. Optically-pure triptycene-based metallomacrocycles and homochiral self-sorting assisted by ladder formation Invited Reviewed International coauthorship

    Oki, Kosuke Zheng, Wei Yashima, Eiji Ikai, Tomoyuki

    Chem. Commun.   Vol. 59   page: 8989 - 8992   2023.6

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    DOI: 10.1039/D3CC02259E

    DOI: 10.1039/D3CC02259E

    Other Link: http://dx.doi.org/10.1039/D3CC02259E

  21. Amplification of macromolecular helicity of poly(biphenylylacetylene)s composed of a small amount of chiral [5]helicene units Reviewed

    Tomoyuki Ikai, Shun Anzai, Kosuke Oki, Eiji Yashima

    Journal of Polymer Science     2022.12

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    DOI: 10.1002/pol.20220658

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  22. Chiral and Achiral Pendant-Bound Poly(biphenylylacetylene)s Bearing Amide and/or Carbamate Groups: One-Handed Helix Formations and Chiral Recognition Abilities Reviewed

    Tomoyuki Ikai, Shogo Okuda, Motoki Aizawa, Eiji Yashima

    Macromolecules   Vol. 55 ( 16 ) page: 7023 - 7031   2022.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society ({ACS})  

    DOI: 10.1021/acs.macromol.2c01362

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  23. Catalytic One-Handed Helix Induction and Subsequent Static Memory of Poly(biphenylylacetylene)s Assisted by a Small Amount of Carboxy Groups Introduced at the Pendants Reviewed

    Tomoyuki Ikai, Shoki Takeda, Eiji Yashima

    ACS Macro Letters     2022.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsmacrolett.2c00136

    DOI: 10.1021/acsmacrolett.2c00136

  24. Macromolecular helicity induction and static helicity memory of poly(biphenylylacetylene)s bearing aromatic pendant groups and their use as chiral stationary phases for high-performance liquid chromatography Invited Reviewed

    Ikai Tomoyuki, Okuda Shogo, Yashima Eiji

    CHIRALITY   Vol. 34 ( 2 ) page: 306 - 316   2022.2

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Chirality  

    Two novel poly(biphenylylacetylene)s (PBPAs) bearing achiral alkylphenyl groups at the 4′-position of the biphenyl pendant through ester linkers with different sequences were synthesized by the rhodium-catalyzed polymerization of the corresponding monomers. The influence of the alkylphenyl pendants and the ester sequences on the macromolecular helicity induction and subsequent static helicity memory was investigated. In addition, the chiral recognition ability as chiral stationary phases for high-performance liquid chromatography of the helicity-memorized PBPAs was also examined. Both polymers formed almost perfect right- and left-handed helical conformations through noncovalent chiral interactions with enantiomeric alcohols, and their induced macromolecular helicities were completely retained (“memorized”) after removal of the helix inducer. A PBPA bearing a 4-n-butylphenoxycarbonyl pendant group with a static helicity memory showed a remarkably high chiral recognition ability toward a wide variety of chiral aromatics, including simple point chiral compounds, axially chiral biaryls, a chiral spiro compound, helicenes, and planar chiral cyclophanes, particularly under the reversed-phase conditions.

    DOI: 10.1002/chir.23399

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  25. Chiral amplification of supramolecular coassemblies of chiral and achiral acylhydrazine-functionalized biphenyls and their copolymers Reviewed

    Ikai Tomoyuki, Kawabata Satoshi, Okuda Shogo, Ousaka Naoki, Yashima Eiji

    POLYMER JOURNAL     2021.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Polymer Journal  

    An optically active acylhydrazine-functionalized biphenyl (AHB) bearing L-alanine-derived oligoamide side chains with tris(alkoxy)phenyl residues at the periphery supramolecularly coassembles with its achiral AHB to form a one-dimensional helical nanofiber, in which intermolecular hydrogen bonding between the chiral/achiral oligoamide pendant units result in modest chiral amplification (the sergeants-and-soldiers effect). The chiral and achiral AHBs copolymerize with 2,6-pyridinedicarboxaldehyde to form preferred-handed helical copolymers with amplification of the helical sense excess driven by intramolecular hydrogen bonds.

    DOI: 10.1038/s41428-021-00550-7

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  26. Water-Mediated Reversible Control of Three-State Double-Stranded Titanium(IV) Helicates Reviewed

    Naoki Ousaka, Manabu Itakura, Akira Nagasaka, Masaki Ito, Tomonari Hattori, Daisuke Taura, Tomoyuki Ikai, Eiji Yashima

    Journal of the American Chemical Society     2021.3

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    DOI: 10.1021/jacs.0c13351

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  27. One‐Step Simultaneous Synthesis of Circularly Polarized Luminescent Multiple Helicenes Using a Chrysene Framework Reviewed

    Tomoyuki Ikai, Shoya Yamakawa, Nozomu Suzuki, Eiji Yashima

    Chemistry – An Asian Journal     2021.2

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/asia.202100035

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  28. Cellulose phenylcarbamate-derived hybrid bead-type chiral packing materials for efficient chiral recognition Reviewed

    Geng Li, Xiao Dai, Yixuan Min, Chang Yu, Tomoyuki Ikai, Lili Zhang, Jun Shen, Yoshio Okamoto

    CELLULOSE   Vol. 28 ( 1 ) page: 347 - 358   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:SPRINGER  

    For efficient enantioseparation, eight organic-inorganic hybrid bead-type chiral packing materials (CPMs) with high organic contents have been developed using cellulose tris(3,5-dimethylphenylcarbamates) bearing small amount of 3-(triethoxysilyl)propyl groups and tetraethyl orthosilicate by a modified Stober process in the basic condition. The hybrid beads could be formed more efficiently in the basic condition without using surfactant, compared to that in the acidic condition. The preparation conditions, including type and amount of catalyst, amount of water and temperature, significantly affected the organic contents and morphology of the hybrid CPMs. Their chiral recognition properties were then examined by high-performance liquid chromatography. The obtained hybrid CPMs with a higher organic content possessed better enantioseparation ability than the traditional CPMs and previous analogue derived from the acidic condition. For some racemates, the hybrid CPMs exhibited even higher enantioselectivity than the commercial Chiralpak IB N, which is one of the most powerful immobilized-type CPMs and prepared from cellulose tris(3,5-dimethylphenylcarbamate).[GRAPHICS].

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  29. Helix-Sense-Selective Encapsulation of Helical Poly(lactic acid)s within a Helical Cavity of Syndiotactic Poly(methyl methacrylate) with Helicity Memory Reviewed

    Tomoyuki Ikai, Satoshi Kawabata, Fumihiko Mamiya, Daisuke Taura, Naoki Ousaka, Eiji Yashima

    Journal of the American Chemical Society   Vol. 142 ( 52 ) page: 21913 - 21925   2020.12

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    DOI: 10.1021/jacs.0c11204

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  30. Peripherally Donor-Installed 7,8-Diaza[5]helicenes as A Platform for Helical Luminophores Reviewed

    Yuta Ikari, Takahito Kaihara, Shimpei Goto, Marcel Bovenkerk, David C. Grenz, Birgit Esser, Marli Ferreira, Patrycja Stachelek, Przemyslaw Data, Takumu Yoshida, Tomoyuki Ikai, Norimitsu Tohnai, Satoshi Minakata, Youhei Takeda

    Synthesis     2020.12

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    A new family of emissive donor–acceptor–donor (D–A–D) compounds has been developed by introducing two electron-donors into the 7,8-diaza[5]helicene core as a novel helical electron acceptor. The X-ray crystallographic analyses revealed the uniquely twisted and helical structures of these compounds in the solid states. Notably, some D-A-D compounds developed herein display distinct mechanochromic luminescence (MCL) in the solid state, and a D–A–D helicene shows circularly polarized luminescence (CPL) with a relatively high luminescence dissymmetry factor <i>g</i><sub>lum</sub> of ca. 10<sup>–3</sup>. Time-resolved spectroscopic analysis revealed the aspects of thermally activated delayed fluorescence characters of the helicenes. Furthermore, the emissive helicenes were applied as organic light-emitting diodes emitters.

    DOI: 10.1055/a-1343-5810

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  31. Catalytic one-handed helix-induction and memory of amphiphilic poly(biphenylylacetylene)s in water Invited Reviewed

    Ikai, Tomoyuki Mizumoto, Kosuke Ishidate, Ryoma Kitzmann, Winald R. Ikeda, Riho Yokota, Chiaki Maeda, Katsuhiro Yashima, Eiji

    Giant     2020.6

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    DOI: 10.1016/j.giant.2020.100016

  32. Chiral Guest-Induced Catalytic Deracemization of a Spiroborate-Based Double-Stranded Helicate Bearing a Bisporphyrin Unit with Acids Reviewed

    Ito, Masaki Ikai, Tomoyuki Yamamoto, Shinya Taura, Daisuke Ousaka, Naoki Yashima, Eiji

    Chem. Lett.     2020.6

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    DOI: 10.1246/cl.200352

  33. Helical Assemblies of One-Dimensional Supramolecular Polymers Composed of Helical Macromolecules: Generation of Circularly Polarized Light Using an Infinitesimal Chiral Source

    Ikai Tomoyuki, Okubo Mitsuhiro, Wada Yuya

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   Vol. 142 ( 6 ) page: 3254-3261   2020.2

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    DOI: 10.1021/jacs.9b13584

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  34. Chiral/Achiral Copolymers of Biphenylylacetylenes Bearing Various Substituents: Chiral Amplification through Copolymerization, Followed by Enhancement/Inversion and Memory of the Macromolecular Helicity

    Ikai Tomoyuki, Ishidate Ryoma, Inoue Kazuya, Kaygisiz Kubra, Maeda Katsuhiro, Yashima Eiji

    MACROMOLECULES   Vol. 53 ( 3 ) page: 973-981   2020.2

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    DOI: 10.1021/acs.macromol.9b02727

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  35. Dithiocarbamate-modified cellulose resins: A novel adsorbent for selective removal of arsenite from aqueous media.

    Nakakubo K, Hasegawa H, Ito M, Yamazaki K, Miyaguchi M, Biswas FB, Ikai T, Maeda K

    Journal of hazardous materials   Vol. 380   page: 120816   2019.12

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    DOI: 10.1016/j.jhazmat.2019.120816

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  36. Helicity induction and memory effect in poly(biphenylylacetylene)s bearing various functional groups and their use as switchable chiral stationary phases for HPLC

    Ishidate Ryoma, Sato Toru, Ikai Tomoyuki, Kanoh Shigeyoshi, Yashima Eiji, Maeda Katsuhiro

    POLYMER CHEMISTRY   Vol. 10 ( 46 ) page: 6260-6268   2019.12

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    DOI: 10.1039/c9py01425j

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  37. Synthesis of helical pi-conjugated polymers bearing pyridine N-oxide pendants and asymmetric allylation of aldehydes in the helical cavity

    Ikai Tomoyuki, Yoshida Takumu

    ORGANIC & BIOMOLECULAR CHEMISTRY   Vol. 17 ( 37 ) page: 8537-8540   2019.10

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    DOI: 10.1039/c9ob01828j

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  38. Helicity Induction and Its Static Memory of Poly(biphenylylacetylene)s Bearing Pyridine N-Oxide Groups and Their Use as Asymmetric Organocatalysts

    Ando Mitsuka, Ishidate Ryoma, Ikai Tomoyuki, Maeda Katsuhiro, Yashima Eiji

    JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY     2019.9

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    DOI: 10.1002/pola.29501

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  39. Optically active triptycenes containing hexa-peri-hexabenzocoronene units

    Wada Yuya, Shinohara Ken-ichi, Ikai Tomoyuki

    CHEMICAL COMMUNICATIONS   Vol. 55 ( 76 ) page: 11386-11389   2019.9

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    DOI: 10.1039/c9cc06025a

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  40. One-Step Synthesis of One-Dimensional Supramolecular Assemblies Composed of Helical Macromolecular Building Blocks

    Wada Yuya, Shinohara Ken-ichi, Asakawa Hitoshi, Matsui Sayaka, Taima Tetsuya, Ikai Tomoyuki

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   Vol. 141 ( 35 ) page: 13995-14002   2019.9

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    DOI: 10.1021/jacs.9b07417

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  41. Synthesis of a one-handed helical polythiophene: a new approach using an axially chiral bithiophene with a fixed <i>syn</i>-conformation.

    Ikai T, Takayama K, Wada Y, Minami S, Apiboon C, Shinohara KI

    Chemical science   Vol. 10 ( 18 ) page: 4890-4895   2019.5

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    DOI: 10.1039/c9sc00342h

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  42. Triptycene-Based Ladder Polymers with One-Handed Helical Geometry.

    Ikai T, Yoshida T, Shinohara KI, Taniguchi T, Wada Y, Swager TM

    Journal of the American Chemical Society   Vol. 141 ( 11 ) page: 4696-4703   2019.3

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    DOI: 10.1021/jacs.8b13865

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  43. What sort of medical care is ideal? Differences in thoughts on medical care among residents of urban and rural/remote Japanese communities

    Ikai Tomoki, Suzuki Tomio, Oshima Tamiki, Kanayama Hitomi, Kusaka Yukinori, Hayashi Hiroyuki, Terasawa Hidekazu

    HEALTH & SOCIAL CARE IN THE COMMUNITY   Vol. 25 ( 5 ) page: 1552-1562   2017.9

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    DOI: 10.1111/hsc.12271

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  44. Performance of the ATLAS trigger system in 2015

    Aaboud M., Aad G., Abbott B., Abdallah J., Abdinov O., Abcloos B., Aben R., AbouZeid O. S., Abraham N. L., Abramowicz H., Abreu H., Abreu R., Abuiaiti Y., Acharya B. S., Adakchi S., Adamczyk L., Adams D. L., Adelman J., Adomeit S., Adye T., Affolder A. A., Agatonovic-Jovin T., Aguilar-Saavedra J. A., Ahlen S. P., Ahmadov F., Aielli G., Akerstedt H., Akesson T. P. A., Akimov A. V., Alberghi G. L., Albert J., Albrand S., Alconada Verzini M. J., Aleksa M., Aleksandrov I. N., Alexa C., Alexander G., Alexopoulos T., Alhroob M., Ali B., Aliev M., Alimonti G., Alison J., Alkire S. P., Allbrooke B. M. M., Allen B. W., Allport P. P., Aloisio A., Alonso A., Alonso F., Alpigiani C., Alshehri A. A., Alstaty M., Gonzalez B. Alvarez, Piqueras D. Alvarez, Oalon M. G. Alviggi, Amadio B. T., Coutinhoa Y. Amaral, Amelung C., Amidei D., Amor Dos Santos S. P., Amorim A., Amoroso S., Amundsen G., Anastopoulos C., Ancu L. S., Andari N., Andeen T., Anders C. F., Anders G., Anders J. K., Anderson K. J., Andreazza A., Andrei V., Angelidakis S., Angelozzi I., Angerami A., Anghinolfi F., Anisenkov A. V., Anjos N., Annovi A., Antel C., Antonelli M., Antonov A., Antrim D. J., Anulli F., Aoki M., Bella L. Aperio, Arabidze G., Arai Y., Araque J. P., Arce A. T. H., Arduh F. A., Arguin J. -F., Argyropoulos S., Arik M., Armbruster A. J., Armitage L. J., Arnaez O., Arnold H., Arratia M., Arslan O., Artamonov A., Artoni G., Artz S., Asai S., Asbahs N., Ashkenazi A., Asman B., Asquith L., Assamagan K., Astalos R., Atkinson M., Atlay N. B., Augsten K., Avolio G., Axen B., Ayoub M. K., Azuelos G., Baak M. A., Baas A. F., Baca M. J., Bachacou H., Bachasd K., Backes M., Backhaus M., Bagiacchi P., Bagnaia P., Bai Y., Baines J. T., Bajic M., Baker O. K., Baldin E. M., Balek P., Balestri T., Balli E., Balunas W. K., Banas E., Banerjee Sw, Bannoura A. A. E., Barak L., Barberio E. L., Barberis D., Barbero M., Barillari T., Barisits M. -S., Barklow T., Barlow N., Barnes S. L., Barnett B. M., Barnett R. M., Barnovska-Blenessya Z., Baroncelli A., Barone G., Barr A. J., Navarro L. Barranco, Barreiro E., Barreiro Guimardes da Costa J., Bartoldus R., Barton A. E., Bartos P., Basalaev's A., Bassalat A., Bates R. L., Batista S. J., Batley J. R., Battaglia M., Bauce M., Bauer F., Bawa H. S., Beacham J. B., Beattie M. D., Beau T., Beauchemin P. H., Bechtle R., Beck H. R., Becker K., Becker M., Beckingham M., Becot C., Beddall A. J., Beddall A., Bednyakov V. A., Bedognetti M., Bee C. P., Beemster L. J., Beermannn T. A., Bege M., Behr J. K., Bell A. S., Bella G., Bellagamba L., Bellerive A., Bellomo M., Belotskiy K., Beltramello, Belyaev N. L., Benary O., Benchekroun D., Bender M., Bendtz K., Benekos N., Benhammou Y., Noccioli E. Benhar, Benitez J., Benjamin D. P., Bensingers J. R., Bentvelsenm S., Beresford L., Beretta M., Berge D., Kuutmann E. Bergeaas, Berger N., Beringer J., Berlendis S., Bernard N. R., Bernius C., Bernlochner F. U., Berry T., Berta P., Bertella C., Bertoli G., Bertolucci E., Bertram I. A., Bertsche C., Bertsche D., Besjes G. J., Bylund O. Bessidskaia, Bessners M., Besson N., Betancourt C., Bethani A., Bethke S., Bevan A. J., Bianchi R. M., Bianco M., Biebel O., Biedermann D., Bielski R., Biesuz N. V., Biglietti M., De Mendizabar J. Bilbao, Billoud T. R. V., Bilokon H., Biondi M., Bingul A., Bini C., Biondi S., Bisanz T., Bjergaard D. M., Black C. W., Black J. E., Black K. M., Blackburn D., Blair R. E., Blazek T., Bloch I., Blockers C., Blue A., Blum W., Blumenscheins U., Blunier S., Bobbink G. J., Bobrovnikov V. S., Bocchetta S. S., Bocci A., Bock C., Boehlers M., Boerner D., Bogaeris J. A., Bogavac D., Bogdanchikov A. G., Bohm C., Boisvert V., Bokan P., Bold T., Boldyrev A. S., Bomben M., Bona M., Boonekamp M., Borisov A., Borissovs G., Bortfeldt J., BorIoletto D., Bortoloito V., Bos K., Boscherini D., Bosman M., Sola J. D. Bossio, Botidreau J., Bouttard J., Bouhova-Thackers E. V., Boumediene D., Bourdarios C., Boutles S. K., Boveia A., Boyd J., Boyko I. R., Bracinik J., Brandt A., Brandt G., Brandt O., Braizler U., Brau B., Braun J. E., Maddens W. D. Breaden, Brendlinger K., Brennan A. J., Brenner I., Brenner R., Bressler S., Bristow T. M., Britton D., Britzger D., Brochu F. M., Brock I., Brock R., Brooijmans G., Brooks T., Brooks W. K., Brosamer J., Brost E., Broughton Mj. H., de Renstrom P. A. Bruckman, Bruncko D., Bruneliere R., Bruni A., Bruni G., Bruni L. S., Brunt B. H., Bmschi M., Bruscino N., Bryant P., Bryngemark L., Buanes T., Buat Q., Buchholz P., Buckley A. G., Budagov I. A., Buehrer F., Bugge M. K., Bulekov O., Bullock D., Burckhart H., Burdin S., Burgards C. D., Burger A. M., Burghgrave B., Burka K., Burke S., Burmeister I., Burr J. T. P., Busato E., Buscher D., Buscher V., Bussey P., Butler J. M., Buttar C. M., Butterworth J. M., P. Butti M., Buttinger W., Buzatu A., Buzykaev A. R., Urban S. Cabrera, Catbrio D., Cairo V. M., Cakir O., Calace N., Calalmura R., Calandri A., Calderini G., Callayan P., Callea G., Caloba L. P., Lopez S. Calvente, Calvet D., Calvet S., Calvet T. P., Toro R. Camacho, Camarda S., Camarri P., Cameron D., Armadans R. Caminal, Camincher C., Campana S., Campanelli M., Camplani A., Campoverde A., Canale V., Canepa A., Bret M. Cano, Cantero J., Cao T., Garrido M. D. M. Capeans, Caprini I., Caprini M., Capua M., Carbone R. M., Cardarelli R., Cardillo F., Carli I., Carli T., Carlino G., Carlson B. T., Carminati L., Carney R. M. D., Caron S., Carquin E., Carrillo-Montoya G. D., Carter J. R., Carvalho J., Casadei D., Casado M. P., Casolino M., Casper D. W., Castaneda-Miranda E., Castelijn R., Castelli A., Gimenez V. Castillo, Castro N. F., Catinaccio A., Catmore J. R., Cattai A., Caudron J., Cavaliere V., Cavallaro E., Cavalli D., Cavalli-Sforza M., Cavasinni V., Ceradini F., Alberich L. Cerda, Cerqueira A. S., Cerri A., Cerrito L., Cerutti F., Cervelli A., Cetin S. A., Chafaq A., Chakfaborty D., Chan S. K., Chan Y. L., Chang P., Chapman J. D., Charlton D. G., Chatterjee A., Chau C. C., Barajas C. A. Chavez, Che S., Cheatham S., Chegwidden A., Chekanov S., Chekulaev S. V., Chelkov G. A., Chelstowska M. A., Chen C., Chen H., Chen K., Chen S., Chen S., Chen X., Chen Y., Cheng H. C., Cheng H. J., Cheng Y., Cheplakov A., Cheremushkina E., El Moursli R. Cherkaoui, Chernyatin V., Cheu E., Chevalier L., Chiarella V., Chiarelli G., Chiodini G., Chisholm A. S., Chitan A., Chizhov M. V., Choi K., Chomont A. R., Chouridou S., Chow B. K. B., Christodoulou V., Chromek-Burckhart D., Chudoba J., Chuinard A. J., Chwastowski J. J., Chytka L., Ciapetti G., Ciftci A. K., Cinca D., Cindro V., Cioara I. A., Ciocca C., Ciocio A., Cirotto E., Citron Z. H., Citterio M., Ciubancan M., Clark A., Clark B. L., Clark M. R., Clark R. J., Clarke R. N., Clement C., Coadou Y., Cobal M., Coccaro A., Cochran J., Colasurdo L., Cole B., Colijnm A. P., Collot J., Colombo T., Compostell G., Muino P. Conde, Coniavitis E., Connell S. H., Connelly I. A., Consorti V., Constantinescu S., Conti G., Conventi F., Cooke M., Cooper B. D., Cooper-Sarkar A. M., Cormier F., Cormie K. J. R., Cornelissen T., Corradia M., Corriveau F., Cortes-Gonzalez A., Cortiana G., Costa G., Costa M. J., Costanzo D., Cottin G., Cowan G., Cox B. E., Cranmer K., Crawley S. J., Cree G., Crepe-Renaudin S., Crescioli F., Cribbs W. A., Ortuzar M. Crispin, Cristinziani M., Croft V., Crosetti G., Cueto A., Donszelmann T. Cuhadar, Cummings J., Curatolou M., Cuth J., Czirr H., Czodrowski P., D'amen G., D'Auria S., D'Onofrio M., Da Cunha Sargedas De Sousa M. J., Da Via C., Dabrowski W., Dado T., Dai T., Dale O., Dallaire F., Dallapiccola C., Dam M., Dandoy J. R., Dang N. P., Daniells A. C., Dann N. S., Danninger M., Hoffmann M. 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A., Ellis N., Elmsheuser J., Elsing M., Emeliyanov D., Enari Y., Endner O. C., Ennis J. S., Erdmann J., Ereditato A., Ernis G., Ernst J., Ernst M., Errede S., Ertel E., Escalier M., Esch H., Escobar C., Esposito B., Etienvre A. I., Etzion E., Evans H., Ezhilovla A., Ezzi M., Fabbri F., Fabbri L., Facini G., Fakhrutdinov R. M., Falciano S., Falla R. J., Faltova J., Fang Y., Fanti M., Farbin A., Farilla A., Farina C., Farina E. M., Farooque T., Farrell S., Farrington S. M., Farthouat P., Fassi F., Fassnacht P., Fassouliotis D., Giannelli M. Faucci, Favareto A., Fawcett W. J., Fayard L., Fedin . L., Fedorko W., Feigl S., Feligioni L., Feng C., Feng E. J., Feng H., Fenyuk A. B., Feremenga L., Martinez P. Fernandez, Perez S. Fernandez, Ferrando J., Ferrari A., Ferrari P., Ferrari R., de Lima D. E. Ferreira, Ferrer A., Ferrere O., Ferretti C., Fiedler F., Filipcic A., Filipuzzi M., Filthaut, Fincke-Keeler M., Finelli K. D., Fiolhais M. C. 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H., Stark J., Staroba P., Starovoitov P., Starz S., Staszewski R., Steinberg P., Stelzer B., Stelzer H. J., Stelzer-Chilton H., Stenzel H., Stewart G. A., Stillings J. A., Stockton M. C., Stoebe M., Stoicea G., Stolte P., Stonjek S., Stradling A. R., Straessner A., Stramaglia M. E., Strandberg J., Strandberg S., Strandlie A., Strauss M., Strizenec P., Strohmer R., Strom D. M., Stroynowski R., Strubig A., Stucci S. A., Stugu B., Styles N. A., Su D., Su J., Suchek S., Sugaya Y., Suk M., Sulin V. V., Sultansoy S., Sumida T., Sun S., Sun X., Sunderman J. E., Suruliz K., Suster C. J. E., Sutton M. R., Suzuki S., Svatos M., Swiatlowski M., Swift S. P., Sykora I., Sykora T., Ta D., Taccini C., Tackmann K., Taenzer J., Taffard A., Tafirout R., Taiblum N., Takai H., Takashima R., Takeshita T., Takubo Y., Talby M., Talyshev A. A., Tan K. G., Tanaka J., Tanaka M., Tanaka R., Tanaka S., Tanioka R., Tannenwald B. B., Araya S. Tapia, Tapprogge S., Tarem S., Tartarelli G. F., Tas P., Tasevsky M., Tashiro T., Tassi E., Delgado A. Tavares, Tayalati Y., Taylor A. C., Taylor G. N., Taylor P. T. E., Taylor W., Teischinger F. A., Teixeira-Dias P., Temming K. K., Temple I., Ten Kate H., Teng P. K., Teoh J. J., Tepel F., Terada S., Terashi K., Terron J., Terzo S., Testa M., Teuscher R. J., Theveneaux-Pelzer T., Thomas J. P., Thomas-Wilsker J., Thompson P. D., Thompson A. S., Thomsen L. A., Thomson E., Tibbetts M. J., Torres R. E. Ticse, Tikhomirov V. O., Tikhonov Yu. A., Timoshenko S., Tipton P., Tisserant S., Todome K., Todorov T., Todorova-Nova S., Tojo J., Tokar S., Tokushuku K., Tolley E., Tomlinson L., Tomoto M., Tompkins L., Toms K., Tong B., Tornambe P., Torrence E., Torres H., Pastor E. Torro, Toth J., Touchard F., Tovey D. R., Trefzger T., Tricoli A., Trigger I. M., Trincaz-Duvoid S., Tripiana M. F., Trischuk W., Trocme B., Trofymov A., Troncon C., Trottier-McDonald M., Trovatelli M., Truong L., Trzebinski M., Trzupek A., Tseng J. C. -L., Tsiareshkas P. V., Tsipolitis G., Tsirintanis N., Tsiskaridze S., Tsiskaridze V., Tskhadadze E. G., Tsui K. M., Tsukerman I. I., Tsulaia V., Tsuno S., Tsybychev D., Tu Y., Tudorache A., Tudorache V., Tulbure T. T., Tuna A. N., Tupputi S. A., Turchikhin S., Turgeman D., Cakir I. Turk, Turra R., Tuts P. M., Ucchielli G., Ueda I., Ughetto M., Ukegawa F., Unal G., Undrus A., Unel G., Ungaro F. C., Unno Y., Unverdorben C., Urban J., Urquijo P., Urrejola P., Usai G., Usui J., Vacavant L., Vacek V., Vachon B., Valderanis C., Santurio E. Valdes, Valencic N., Valentinetti S., Valero A., Valery L., Valkar S., Ferrer J. A. Valls, Van den Wollenberg W., Van der Deij P. C., van der Graaf H., van Eldik N., van Gemmeren P., Van Nieuwkoop J., van Vulpen I., van Woerden M. C., Vanadia M., Vandelli W., Vanguri R., Vaniachine A., Vankov P., Vardanyan G., Vari R., Varnes E. W., Varol T., Varouchas D., Vartapetian A., Varvell K. E., Vasquez J. G., Vasquez G. A., Vazeille F., Schroeder T. Vazquez, Veatch J., Veeraraghavan V., Veloce L. M., Veloso F., Veneziano S., Vantura A., Venturi M., Venturi N., Venturini A., Vercesi V., Verducci M., Verkerke W., Vermeulen J. C., Vest A., Vetterli M. C., Viazlo O., Vichou I., Vickey T., Boeriu . E. Vickey, Viehhauser G. H. A., Viel S., Vigani L., Villa M., Perez M. Villaplana, Vilucchi E., Vincter M. G., Vinogradov V. B., Vittori C., Vivarelli I., Vlachos S., Vlasak M., Vogel M., Vokac P., Volpi G., Volpi M., von der Schmitt H., von Toerne E., Vorobel V., Vorobev K., Vos M., Voss R., Vossebeld J. H., Vranjes N., Milosavljevic M. Vranjes, Vrba V., Vreeswijk M., Vuillermet R., Vukotic I., Wagner P., Wagner W., Wahlberg H., Wahrmund S., Wakabayashi J., Walder J., Walker R., Walkowiak W., Wallangen V., Wang C., Wang C., Wang F., Wang H., Wang H., Wang J., Wang J., Wang K., Wang R., Wang S. M., Wang T., Wang W., Wanotayaroj C., Warburton A., Ward C. P., Wardrope D. R., Washbrook A., Watkins P. M., Watson A. T., Watson M. F., Watts G., Watts S., Waugh B. M., Webb S., Weber M. S., Weber S. W., Weber S. A., Webster J. S., Weidberg A. R., Weinert B., Weingarten J., Weiser C., Wefts H., Wells P. S., Wenaus T., Wengler T., Wenig S., Wermes N., Werner M. D., Werner P., Wessels M., Wetter J., Whalen K., Whallon N. L., Wharton A. M., White A., White M. J., White R., Whiteson D., Wickens E. J., Wiedenmann W., Wielers M., Wiglesworth C., Wiik-Fuchs L. A. M., Wildauer A., Wilk E., Wilkens H. G., Williams H. H., Williams S., Willocq S., Wilson J. A., Wingerter-Seez I., Winklmeier E., Winston O. J., Winter B. T., Wittgen M., Wolf T. M. H., Wolft R., Wolter M. W., Wolters H., Worm S. D., Wosiek B. K., Wotschack J., Woudstra M. J., Wozniak K. W., Wu M., Wu M., Wu S. L., Wu X., Wu Y., Wyatt T. R., Wynne B. M., Xella S., Xi Z., Xu D., Xu L., Yabsley B., Yacoob S., Yamaguchi I., Yamaguchi Y., Yamamoto A., Yamamoto S., Yamanaka T., Yamauchi K., Yamazaki Y., Yan Z., Yang H., Yang H., Yang Y., Yang Z., Yao W. -M., Yap Y. C., Yasu Y., Yatsenko E., Wong K. H. Yau, Ye J., Ye S., Yeletskikh L., Yildirim E., Yorita K., Yoshida R., Yoshihara K., Young C., Young C. J. S., Youssef S., Yu D. R., Yu J., Yu J. M., Yu J., Yuan L., Yuen S. R. Y., Yusuff L., Zabinski B., Zacharis G., Zaidan R., Zaitsev A. M., Zakharchuk N., Zalieckas J., Zaman A., Zambito S., Zanello L., Zanzi D., Zeitnitz C., Zeman M., Zemla A., Zeng J. C., Zeng Q., Zenin O., Zenis T., Zerwas D., Zhang D., Zhang F., Zhang G., Zhang H., Zhang J., Zhang L., Zhang L., Zhang M., Zhang R., Zhang R., Zhang X., Zhang Z., Zhao X., Zhao Y., Zhao Z., Zhemchugov A., Zhong J., Zhou B., Zhou C., Zhou L., Zhou L., Zhou M., Zhou N., Zhu C. G., Zhu H., Zhu J., Zhu Y., Zhuang X., Zhukov K., Zibell A., Zieminska D., Zimine N. I., Zimmermann C., Zimmermann S., Zinonos Z., Zinser M., Ziolkowski M., Zivkovic L., Zobernig G., Zoccoli A., zur Nedden M., Zwalinski L.

    EUROPEAN PHYSICAL JOURNAL C   Vol. 77 ( 5 )   2017.5

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    DOI: 10.1140/epjc/s10052-017-4852-3

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  45. A cellulose-based chiral fluorescent sensor for aromatic nitro compounds with central, axial and planar chirality Reviewed

    Tomoyuki Ikai, Daisuke Suzuki, Ken-ichi Shinohara, Katsuhiro Maeda, Shigeyoshi Kanoh

    POLYMER CHEMISTRY   Vol. 8 ( 14 ) page: 2257 - 2265   2017.4

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    Chiral sensing using fluorescent responses as output signals is an attractive technique for enantiodifferentiation in terms of its rapidity, high sensitivity, simplicity and high-throughput ability. However, because the reported sensors can only be applied to a limited type of chiral molecule (mainly compounds with a chiral center), it is still a great challenge to develop a powerful fluorescent sensor applicable to various types of chirality. Herein, we synthesized a novel chiral fluorescent sensor (Ce-3) containing a benzo [1,2-b: 4,5-b'] dithiophene-based p-conjugated group as a fluorescent signaling unit through a two-step polymer reaction, including carbamoylation and cross-coupling reactions, using microcrystalline cellulose as a starting material. The enantioselective fluorescence response of this modified cellulose to aromatic nitro compounds was investigated in solution and in the solid state. Ce-3 exhibited enantioselective fluorescence quenching for a wide range of aromatic nitro compounds with central, axial and planar chirality. Visual chiral detection based on a change of the visible emission color was also achieved with Ce-3 in conjunction with anthracene as an achiral fluorescent dye. A corresponding model molecule did not show any marked sensing ability, suggesting that the regular higher-order structure of Ce-3 plays a key role in this efficient chiral sensing.

    DOI: 10.1039/c7py00285h

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  46. Synthesis and Chiral Recognition Ability of a Poly(phenylenevinylene)-Encapsulated Amylose Derivative

    Tamura Kazumi, Sam Nor Syahidah Md, Ikai Tomoyuki, OKAMOTO Yoshio, YASHIMA Eiji

    Bulletin of the Chemical Society of Japan   Vol. 84 ( 7 ) page: 741 - 747   2011.7

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  47. Chiral recognition ability of cellulose derivatives bearing pyridyl and bipyridyl residues as chiral stationary phases for high-performance liquid chromatography

    Katoh Yasunaka, Tsujimoto Yasutaka, Yamamoto Chiyo, IKAI Tomoyuki, KAMIGAITO Masami, OKAMOTO Yoshio

    Polymer journal   Vol. 43 ( 1 ) page: 84 - 90   2011.1

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  48. Enantioseparation using amylose esters as chiral stationary phases for high-performance liquid chromatography

    Sugiura Yuri, Yamamoto Chiyo, Ikai Tomoyuki, KAMIGAITO Masami, OKAMOTO Yoshio

    Polymer journal   Vol. 42 ( 1 ) page: 31 - 36   2010.1

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  49. Preparation and chiral recognition of polysaccharide-based selectors Reviewed

    Tomoyuki Ikai, Yoshio Okamoto

    Chiral Recognition in Separation Methods: Mechanisms and Applications     page: 33 - 52   2010

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    Among more than one hundred commercially available CSPs, those based on the phenylcarbamates of polysaccharides including cellulose and amylose have been recognized as the most powerful for the resolution of a wide range of racemates, and nearly 90% of chiral compounds can be resolved at the analytical level using the polysaccharide-based CSPs. Although the qualitative understanding of the chiral recognition mechanism of polysaccharide-based CSPs is rather difficult in contrast to the small molecule-based CSPs, several attempts have made for comprehension of the chromatographic behavior on the polysaccharide-based CSPs. In this chapter, after describing the development of the polysaccharide-based CSPs with high recognition ability, special emphasis is placed on the mechanistic study of the polysaccharide-based CSPs on the basis of spectroscopic and computational methods. © 2010 Springer-Verlag Berlin Heidelberg.

    DOI: 10.1007/978-3-642-12445-7_2

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  50. Chiral HPLC for Efficient Resolution of Enantiomers Invited Reviewed

    Yoshio Okamoto and Tomoyuki Ikai

    Chem. Soc. Rev.   Vol. 37 ( 12 ) page: 2593-2608   2008.12

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  51. Immobilized-type chiral packing materials for HPLC based on polysaccharide derivatives

    IKAI Tomoyuki, YAMAMOTO Chiyo, KAMIGAITO Masami, OKAMOTO Yoshio

    Journal of chromatography. B, Analytical technologies in the biomedical and life sciences   Vol. 875 ( 1 ) page: 2 - 11   2008.11

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  52. A maltooctaose derivative ("Acyclodextrin") as a chiral stationary phase for enantioselective gas chromatography Reviewed

    Giuseppe Sicoli, Ikai Tomoyuki, Laszlo Jicsinszky, Volker Schurig

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY   ( 25 ) page: 4241 - 4244   2008.9

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    The enantiorecognition mechanism of several cyclodextrin derivatives is still not completely rationalized, and the application of acyclic selectors may aid to explain the role of the cavity (typical of the underivatized cyclic selectors) combined with the functional groups introduced by multistep synthesis, Octakis[(3-0,-4 '' O)-butanoyl-(1'-O,2,6-di-O)-n-pentyl]maltooctaose was applied as a chiral stationary phase for gas chromatographic enantioseparation. Selected racemic compounds were enantioseparated also on the acyclic phase. The promising results of this chiral selector [and its direct comparison with the cyclic counterpart octakis(2,6-di-O-n-pentyl-3-O-butanoyl)-y-cyclodextrin (Lipodex E)] suggest the application of other well-known spectroscopic techniques (CD, NMR) to point out further details on the mechanism of enantiorecognition. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).

    DOI: 10.1002/ejoc.200800508

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  53. A Maltooctaose Derivative (Acyclodextrin) as a Chiral Stationary Phase for Enantioselective Gas Chromatography Reviewed

    Giuseppe Sicoli, Tomoyuki Ikai, Laszlo Jicsinszky, and Volker Schurig

    Eur. J. Org. Chem.     page: 4241-4244   2008

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  54. Organic-Inorganic Hybrid Materials for Efficient Enantioseparation Using Cellulose 3,5-Dimethylphenylcarbamate and Tetraethyl Orthosilicate Invited Reviewed

    Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto

    Chem. Asian J.   Vol. 3   page: 1494-1499   2008

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  55. Immobilized-type Chiral Packing Materials for HPLC Based on Polysaccharide Derivatives Invited Reviewed

    Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto

    J. Chromatogr. B   Vol. 875   page: 2-11   2008

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  56. Preparation and Chiral Recognition Ability of Crosslinked Beads of Polysaccharide Derivatives Reviewed

    Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto

    J. Sep. Sci.   Vol. 30   page: 971-978   2007

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  57. Calix[4]arene-Based Bis[2]catenanes: Synthesis and Chiral Resolution Reviewed

    Olena Molokanova, Anca Bogdan, Myroslav O. Vysotsky, Michael Bolte, Tomoyuki Ikai, Yoshio Okamoto, and Volker Böhmer

    Chem. Eur. J.   Vol. 13   page: 6157-6170   2007

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  58. Immobilization of Polysaccharide Derivatives onto Silica Gel. Facile Synthesis of Chiral Packing Materials by Means of Intermolecular Polycondensation of Triethoxysilyl Groups Reviewed

    Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto

    J. Chromatogr. A   Vol. 1157   page: 151-158   2007

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  59. Immobilized Polysaccharide Derivatives: Chiral Packing Materials for Efficient HPLC Resolution Invited Reviewed

    Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto

    Chem. Rec.   Vol. 7 ( 91-103 )   2007

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  60. Development of polysaccharide-based chiral packing materials by intermolecular polycondensation of alkoxysilyl groups Reviewed

    Ikai T.

    Polymer Preprints, Japan   Vol. 55 ( 2 ) page: 5052 - 5053   2006.12

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  61. Efficient Immobilization of Cellulose Phenylcarbamate Bearing Alkoxysilyl Group onto Silica Gel by Intermolecular Polycondensation and Its Chiral Recognition

    IKAI Tomoyuki, YAMAMOTO Chiyo, KAMIGAITO Masami, OKAMOTO Yoshio

    Chemistry letters   Vol. 35 ( 11 ) page: 1250 - 1251   2006.11

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  62. Development of crosslinked beads of cellulose derivatives with high chiral recognition Reviewed

    Ikai T.

    Polymer Preprints, Japan   Vol. 55 ( 1 )   2006.10

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  63. High-Performance Liquid Chromatographic Enantioseparations on Capillary Columns Containing Crosslinked Polysaccharide Phenylcarbamate Derivatives Attached to Monolithic Silica Reviewed

    Bezhan Chankvetadze, Takateru Kubota, Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, Nobuo Tanaka, Kazuki Nakanishi, and Yoshio Okamoto

    J. Sep. Sci.   Vol. 29   page: 1988-1995   2006

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  64. Efficient Immobilization of Cellulose Phenylcarbamate Bearing Alkoxysilyl Group onto Silica Gel by Intermolecular Polycondensation and Its Chiral Recognition Reviewed

    Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto

    Chem. Lett.   Vol. 35 ( 1250-1251 )   2006

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  65. Immobilized Polysaccharide-Based Chiral Stationary Phases for HPLC Reviewed

    Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto

    Polym. J.   Vol. 38   page: 91-108   2006

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  66. Immobilized polysaccharide-based chiral stationary phases for HPLC Reviewed

    T Ikai, C Yamamoto, M Kamigaito, Y Okamoto

    POLYMER JOURNAL   Vol. 38 ( 2 ) page: 91 - 108   2006

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    Publishing type:Research paper (scientific journal)   Publisher:NATURE PUBLISHING GROUP  

    Polysaccharide derivatives, such as phenylcarbamates and benzoates of cellulose and amylose, are known to show high chiral recognition abilities for many racemates when used as chiral stationary phases (CSPs) for high-performance liquid chromatography (HPLC). This type of CSPs has usually been prepared by coating the polysaccharide derivatives onto a macroporous silica gel without a chemical bond. Therefore, rather limited numbers of solvents can be used as eluents, and solvents, such as chloroform and tetrahydrofuran (THF), which swell or dissolve the polysaccharide derivatives cannot be used. The selection of a suitable eluent is very important for both analytical and preparative separations. In order to enhance the versatility of the polysaccharide derivative-based CSPs, the derivatives have to be immobilized. Here we review the immobilization methods of the polysaccharide derivatives mainly onto silica gel.

    DOI: 10.1295/polymj.38.91

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  67. Development of new chiral packing material consisting only of derivatized polysaccharide beads Reviewed

    Ikai T.

    Polymer Preprints, Japan   Vol. 54 ( 2 )   2005.12

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  68. Preparation of derivatized polysaccharide beads as chiral stationary phase for HPLC Reviewed

    Ikai T.

    Polymer Preprints, Japan   Vol. 54 ( 1 )   2005.12

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  69. Enantioseparation by HPLC Using Phenylcarbonate, Benzoylformate, p-Toluenesulfonylcarbamate, and Benzoylcarbamates of Cellulose and Amylose as Chiral Stationary Phases Invited Reviewed

    Tomoyuki Ikai, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto

    Chirality   Vol. 17   page: 299-304   2005

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  70. Cellulose derivative-based beads as chiral stationary phase for HPLC Reviewed

    Ikai T, Muraki R, Yamamoto C, Kamigaito M, Okamoto Y

    CHEMISTRY LETTERS   Vol. 33 ( 9 ) page: 1188 - 1189   2004.9

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    DOI: 10.1246/cl.2004.1188

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  71. Rational Synthesis of Multicyclic Bis[2]catenanes Reviewed

    Anca Bogdan, Myroslav O. Vysotsky, Tomoyuki Ikai, Yoshio Okamoto, and Volker Böhmer

    Chem. Eur. J.   Vol. 10   page: 3324-3330   2004

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  72. High-Performance Liquid Chromatographic Enantioseparations on Monolithic Silica Columns Containing a Covalently Attached 3,5-Dimethylphenylcarbamate Derivative of Cellulose Reviewed

    Bezhan Chankvetadze, Tomoyuki Ikai, Chiyo Yamamoto, and Yoshio Okamoto

    J. Chromatogr. A   Vol. 1042   page: 55-60   2004

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  73. Cellulose Derivative-Based Beads as Chiral Stationary Phase for HPLC Reviewed

    Tomoyuki Ikai, Reiko Muraki, Chiyo Yamamoto, Masami Kamigaito, and Yoshio Okamoto

    Chem. Lett.   Vol. 33   page: 1188-1189   2004

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Books 5

  1. ラジカル重合による分離材料設計

    井改知幸( Role: Contributor ,  第4編 第2章 第9節)

    エヌ・ティー・エス 新訂三版 ラジカル重合ハンドブック  2023.12 

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    Language:Japanese

  2. 記憶力を有するらせん高分子の創成と光学分割材料への応用

    井改 知幸, 八島 栄次( Role: Joint author)

    分離技術会  2023.9 

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    Total pages:10   Responsible for pages:301-310   Language:Japanese Book type:Textbook, survey, introduction

  3. Helical Polymer

    ( Role: Contributor)

    2022.11  ( ISBN:978-4-254-25272-9

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    Total pages:648   Responsible for pages:2   Language:Japanese Book type:Dictionary, encyclopedia

  4. Fascinating Helical Ladder Polymers

    Tomoyuki Ikai( Role: Sole author)

    The Society of Polymer Science, Japan  2021.9 

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    Responsible for pages:2   Language:Japanese Book type:Scholarly book

  5. Development of efficient chiral packing materials for HPLC through immobilization of cellulose and amylose derivatives

    井改 知幸( Role: Sole author)

    [s.n.]  2008 

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MISC 82

  1. ラセン状ポリイソシアニドの合成とその一次元超分子集合体形成挙動

    和田侑也, 篠原健一, 淺川雅, 松井彩香, 當摩哲也, 前田勝浩, 井改知幸

    シンポジウム「モレキュラー・キラリティー」講演要旨集   Vol. 2019   2019

  2. Helicity control of -conjugated foldamers containing d-glucose-based single enantiomeric units as a chiral source Reviewed

    Ikai Tomoyuki, Minami Serena, Awata Seiya, Shimizu Sho, Yoshida Takumu, Okubo Mitsuhiro, Shinohara Ken-ichi

    POLYMER CHEMISTRY   Vol. 9 ( 46 ) page: 5504-5510   2018.12

  3. Synthesis of a helical pi-conjugated polymer with a dynamic hydrogen-bonded network in the helical cavity and its circularly polarized luminescence properties Reviewed

    Ikai Tomoyuki, Awata Seiya, Shinohara Ken-ichi

    POLYMER CHEMISTRY   Vol. 9 ( 13 ) page: 1541-1546   2018.4

  4. Chiral Amplification in π-Conjugated Helical Polymers with Circularly Polarized Luminescence Reviewed

    Tomoyuki Ikai, Sho Shimizu, Seiya Awata, Ken-ichi Shinohara

    Macromolecules   Vol. 51 ( 6 ) page: 2328-2334   2018.3

  5. Direct Detection of Hardly Detectable Hidden Chirality of Hydrocarbons and Deuterated Isotopomers by a Helical Polyacetylene through Chiral Amplification and Memory Reviewed

    Maeda Katsuhiro, Hirose Daisuke, Okoshi Natsuki, Shimomura Kouhei, Wada Yuya, Ikai Tomoyuki, Kanoh Shigeyoshi, Yashima Eiji

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   Vol. 140 ( 9 ) page: 3270-3276   2018.3

  6. Circularly Polarized Luminescent Triptycene-Based Polymers Reviewed

    Tomoyuki Ikai, Takumu Yoshida, Seiya Awata, Yuya Wada, Katsuhiro Maeda, Motohiro Mizuno, Timothy M. Swager

    ACS Macro Letters   Vol. 7 ( 3 ) page: 364-369   2018.3

  7. Synthesis of Optically Active Polymers Containing Carbohydrate Units as a Chiral Source and Exploration of Their Functions Reviewed

    Ikai Tomoyuki

    KOBUNSHI RONBUNSHU   Vol. 75 ( 5 ) page: 406-420   2018

  8. Optically active distorted cyclic triptycenes: chiral stationary phases for HPLC Reviewed

    Ikai Tomoyuki, Nagata Naoya, Awata Seiya, Wada Yuya, Maeda Katsuhiro, Mizuno Motohiro, Swager Timothy M.

    RSC ADVANCES   Vol. 8 ( 37 ) page: 20483-20487   2018

  9. Chiral triptycene-pyrene pi-conjugated chromophores with circularly polarized luminescence Reviewed

    Ikai Tomoyuki, Wada Yuya, Awata Seiya, Yun Changsik, Maeda Katsuhiro, Mizuno Motohiro, Swager Timothy M.

    ORGANIC & BIOMOLECULAR CHEMISTRY   Vol. 15 ( 39 ) page: 8440-8447   2017.10

  10. Static Memory of Enantiomeric Helices Induced in a Poly(biphenylylacetylene) by a Single Enantiomer Assisted by Temperature- and Solvent-Driven Helix Inversion Reviewed

    Maeda Katsuhiro, Shimomura Kouhei, Ikai Tomoyuki, Kanoh Shigeyoshi, Yashima Eiji

    MACROMOLECULES   Vol. 50 ( 19 ) page: 7801-7806   2017.10

  11. Chiral stationary phases consisting of pi-conjugated polymers bearing glucose-linked biphenyl units: reversible switching of resolution abilities based on a coil-to-helix transition Reviewed

    Ikai Tomoyuki, Awata Seiya, Kudo Tomoya, Ishidate Ryoma, Maeda Katsuhiro, Kanoh Shigeyoshi

    POLYMER CHEMISTRY   Vol. 8 ( 29 ) page: 4190-4198   2017.8

  12. Helical Folding of pi-Conjugated Polymers Bearing Glucose-Linked Biphenyl Units in the Main Chain: Application to Circularly Polarized Luminescence Materials Reviewed

    Ikai Tomoyuki, Shimizu Sho, Kudo Tomoya, Maeda Katsuhiro, Kanoh Shigeyoshi

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   Vol. 90 ( 8 ) page: 910-918   2017.8

  13. Cellulose derivatives bearing pyrene-based π-conjugated pendants with circularly polarized luminescence in molecularly dispersed state Reviewed

    Tomoyuki Ikai, Yutaka Kojima, Ken-ichi Shinohara, Katsuhiro Maeda, Shigeyoshi Kanoh

    Polymer   Vol. 117   page: 220-224   2017.5

  14. A cellulose-based chiral fluorescent sensor for aromatic nitro compounds with central, axial and planar chirality Reviewed

    Ikai Tomoyuki, Suzuki Daisuke, Shinohara Ken-ichi, Maeda Katsuhiro, Kanoh Shigeyoshi

    POLYMER CHEMISTRY   Vol. 8 ( 14 ) page: 2257-2265   2017.4

  15. The dawn of chiral material development using saccharide-based helical polymers Reviewed

    Ikai Tomoyuki

    POLYMER JOURNAL   Vol. 49 ( 4 ) page: 355-362   2017.4

  16. Chromatographic enantioseparation by poly(biphenylylacetylene) derivatives with memory of both axial chirality and macromolecular helicity Reviewed

    Ishidate Ryoma, Ikai Tomoyuki, Kanoh Shigeyoshi, Yashima Eiji, Maeda Katsuhiro

    CHIRALITY   Vol. 29 ( 3-4 ) page: 120-129   2017.3

  17. A mechanistic insight into the organocatalytic properties of imidazolium-based ionic liquids and a positive co-solvent effect on cellulose modification reactions in an ionic liquid Reviewed

    Kakuchi Ryohei, Ito Ryo, Nomura Shuhei, Abroshan Hadi, Ninomiya Kazuaki, Ikai Tomoyuki, Maeda Katsuhiro, Kim Hyung J., Takahashi Kenji

    RSC ADVANCES   Vol. 7 ( 16 ) page: 9423-9430   2017

  18. Efficient and rapid direct transesterification reactions of cellulose with isopropenyl acetate in ionic liquids (vol 5, pg 72071, 2015) Reviewed

    Kakuchi Ryohei, Yamaguchi Makoto, Endo Takatsugu, Shibata Yoshiki, Ninomiya Kazuaki, Ikai Tomoyuki, Maeda Katsuhiro, Takahashi Kenji

    RSC ADVANCES   Vol. 7 ( 24 ) page: 14321   2017

  19. A mechanistic insight into the organocatalytic properties of imidazolium-based ionic liquids and a positive co-solvent effect on cellulose modification reactions in an ionic liquid (vol 7, pg 9423, 2017) Reviewed

    Kakuchi Ryohei, Ito Ryo, Nomura Shuhei, Abroshan Hadi, Ninomiya Kazuaki, Ikai Tomoyuki, Maeda Katsuhiro, Kim Hyung J., Takahashi Kenji

    RSC ADVANCES   Vol. 7 ( 23 ) page: 13876   2017

  20. Supramolecular Helical Systems: Helical Assemblies of Small Molecules, Foldamers, and Polymers with Chiral Amplification and Their Functions Reviewed

    Yashima Eiji, Ousaka Naoki, Taura Daisuke, Shimomura Kouhei, Ikai Tomoyuki, Maeda Katsuhiro

    CHEMICAL REVIEWS   Vol. 116 ( 22 ) page: 13752-13990   2016.11

  21. Synthesis of Optically Active Poly(diphenylacetylene)s Using Polymer Reactions and an Evaluation of Their Chiral Recognition Abilities as Chiral Stationary Phases for HPLC Reviewed

    Maeda Katsuhiro, Maruta Miyuki, Sakai Yuki, Ikai Tomoyuki, Kanoh Shigeyoshi

    MOLECULES   Vol. 21 ( 11 )   2016.11

  22. Development of Amylose- and beta-Cyclodextrin-Based Chiral Fluorescent Sensors Bearing Terthienyl Pendants Reviewed

    Ikai Tomoyuki, Yun Changsik, Kojima Yutaka, Suzuki Daisuke, Maeda Katsuhiro, Kanoh Shigeyoshi

    MOLECULES   Vol. 21 ( 11 )   2016.11

  23. Chiral Recognition Ability of an Optically Active Poly(diphenylacetylene) as a Chiral Stationary Phase for HPLC Reviewed

    Maeda Katsuhiro, Maruta Miyuki, Shimomura Kouhei, Ikai Tomoyuki, Kanoh Shigeyoshi

    CHEMISTRY LETTERS   Vol. 45 ( 9 ) page: 1063-1065   2016.9

  24. Synthesis of Thieno[ 3,4-b] thiophene-Based Donor Molecules with Phenyl Ester Pendants for Organic Solar Cells: Control of Photovoltaic Properties via Single Substituent Replacement Reviewed

    Wada Yuya, Asada Yuki, Ikai Tomoyuki, Maeda Katsuhiro, Kuwabara Takayuki, Takahashi Kohshin, Kanoh Shigeyoshi

    CHEMISTRYSELECT   Vol. 1 ( 4 ) page: 703-709   2016.4

  25. Achieving high ON/OFF ratio and good stability in organic nonvolatile resistive memory devices with polyisocyanide bearing oligothiophene Reviewed

    Sakuragawa Yasushi, Takagi Yugaku, Ikai Tomoyuki, Maeda Katsuhiro, Toan Thanh Dao, Sakai Heisuke, Murata Hideyuki

    JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 55 ( 3 )   2016.3

  26. Synthesis of novel glucose-based polymers and their applications as chiral stationary phases for high performance liquid chromatography Reviewed

    Ikai Tomoyuki, Yamada Takayuki

    CHINESE JOURNAL OF CHROMATOGRAPHY   Vol. 34 ( 1 ) page: 4-9   2016.1

  27. Chiral fluorescent sensors based on cellulose derivatives bearing terthienyl pendants Reviewed

    Ikai Tomoyuki, Suzuki Daisuke, Kojima Yutaka, Yun Changsik, Maeda Katsuhiro, Kanoh Shigeyoshi

    POLYMER CHEMISTRY   Vol. 7 ( 29 ) page: 4793-4801   2016

  28. Synthesis and chiroptical properties of a pi-conjugated polymer containing glucose-linked biphenyl units in the main chain capable of folding into a helical conformation Reviewed

    Ikai Tomoyuki, Shimizu Syo, Awata Seiya, Kudo Tomoya, Yamada Takayuki, Maeda Katsuhiro, Kanoh Shigeyoshi

    POLYMER CHEMISTRY   Vol. 7 ( 48 ) page: 7522-7529   2016

  29. Impact of a minority enantiomer on the polymerization of alanine-based isocyanides with an oligothiophene pendant Reviewed

    Ikai Tomoyuki, Wada Yuya, Takagi Yugaku, Shinohara Ken-ichi

    POLYMER CHEMISTRY   Vol. 7 ( 46 ) page: 7057-7067   2016

  30. らせん状ポリイソシアニドを用いたReRAMの動作機構解析

    櫻川康志, 高木遊学, 井改知幸, 酒井平祐, 前田勝浩, 村田英幸

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   Vol. 63rd   2016

  31. Synthesis of polyisocyanides bearing oligothiophene pendants: higher-order structural control through pendant framework design Reviewed

    Ikai Tomoyuki, Takagi Yugaku, Shinohara Ken-ichi, Maeda Katsuhiro, Kanoh Shigeyoshi

    POLYMER JOURNAL   Vol. 47 ( 9 ) page: 625-630   2015.9

  32. Robust transesterification reactions of cellulose in imidazolium-based ionic liquids Reviewed

    Kakuchi Ryohei, Yamaguchi Makoto, Shibata Yoshiki, Ninomiya Kazuaki, Ikai Tomoyuki, Maeda Katsuhiro, Takahashi Kenji

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   Vol. 250   page: .   2015.8

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  33. Macromolecular Helicity Induction and Memory in a Poly(biphenylylacetylene) Bearing an Ester Group and Its Application to a Chiral Stationary Phase for High-performance Liquid Chromatography Reviewed

    Ishidate Ryoma, Shimomura Kouhei, Ikai Tomoyuki, Kanoh Shigeyoshi, Maeda Katsuhiro

    CHEMISTRY LETTERS   Vol. 44 ( 7 ) page: 946-948   2015.7

  34. Influence of 4-fluorophenyl pendants in thieno[3,4-b]thiophene-benzo[1,2-b:4,5-b]dithiophene-based polymers on the performance of photovoltaics Reviewed

    Yamamoto Tomoyuki, Ikai Tomoyuki, Katori Shinji, Kuwabara Takayuki, Maeda Katsuhiro, Koganezawa Tomoyuki, Takahashi Kohshin, Kanoh Shigeyoshi

    JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY   Vol. 53 ( 13 ) page: 1586-1593   2015.7

  35. 合成らせん高分子のキラル識別材料への応用 Invited

    前田勝浩, 井改知幸

    化学工業   Vol. 66   page: 109 - 115   2015.2

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  36. Thieno[3,4-b]thiophene-benzo[1,2-b:4,5-b']dithiophene-based polymers bearing optically pure 2-ethylhexyl pendants: Synthesis and application in polymer solar cells Reviewed

    Ikai Tomoyuki, Kojima Ryotaro, Katori Sinji, Yamamoto Tomoyuki, Kuwabara Takayuki, Maeda Katsuhiro, Takahashi Kohshin, Kanoh Shigeyoshi

    POLYMER   Vol. 56   page: 171-177   2015.1

  37. Efficient and rapid direct transesterification reactions of cellulose with isopropenyl acetate in ionic liquids Reviewed

    Kakuchi Ryohei, Yamaguchi Makoto, Endo Takatsugu, Shibata Yoshiki, Ninomiya Kazuaki, Ikai Tomoyuki, Maeda Katsuhiro, Takahashi Kenji

    RSC ADVANCES   Vol. 5 ( 88 ) page: 72071-72074   2015

  38. 可溶性オリゴチオフェン系電子ドナー材料を用いた逆構造バルクヘテロ接合型有機薄膜太陽電池の作製

    浅田裕貴, 久住拓司, 桑原貴之, 桑原貴之, 當摩哲也, 當摩哲也, 高橋光信, 高橋光信, 和田侑也, 井改知幸, 井改知幸, 前田勝浩, 前田勝浩, 加納重義, 加納重義

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   Vol. 76th   2015

  39. Chiral Amplification in Polymer Brushes Consisting of Dynamic Helical Polymer Chains through the Long-Range Communication of Stereochemical Information Reviewed

    Maeda Katsuhiro, Wakasone Shiho, Shimomura Kouhei, Ikai Tomoyuki, Kanoh Shigeyoshi

    MACROMOLECULES   Vol. 47 ( 19 ) page: 6540-6546   2014.10

  40. Synthesis and application of immobilized polysaccharide-based chiral stationary phases for enantioseparation by high-performance liquid chromatography. Reviewed

    Shen J, Ikai T, Okamoto Y

    Journal of chromatography. A   Vol. 1363C   page: 51-61   2014.10

  41. Synthesis of polysaccharide derivatives bearing bromobenzoate pendants for use as chiral auxiliaries Reviewed

    Ikai Tomoyuki, Kimura Kazuma, Maeda Katsuhiro, Kanoh Shigeyoshi

    REACTIVE & FUNCTIONAL POLYMERS   Vol. 82   page: 52-57   2014.9

  42. Switchable enantioseparation based on macromolecular memory of a helical polyacetylene in the solid state Reviewed

    Shimomura Kouhei, Ikai Tomoyuki, Kanoh Shigeyoshi, Yashima Eiji, Maeda Katsuhiro

    NATURE CHEMISTRY   Vol. 6 ( 5 ) page: 429-434   2014.5

  43. Fine tuning of frontier orbital energy levels in dithieno[3,2-b:2 ',3 '-d] silole-based copolymers based on the substituent effect of phenyl pendants Reviewed

    Ikai Tomoyuki, Kudo Tomoya, Nagaki Masahiro, Yamamoto Tomoyuki, Maeda Katsuhiro, Kanoh Shigeyoshi

    POLYMER   Vol. 55 ( 9 ) page: 2139-2145   2014.4

  44. らせん状ポリイソシアニドを用いた抵抗変化型不揮発性メモリ

    櫻川康志, 高木遊学, 井改知幸, 酒井平祐, 村田英幸

    応用物理学会秋季学術講演会講演予稿集(CD-ROM)   Vol. 75th   2014

  45. Synthesis of seleno[3,4-c]pyrrole-4,6-dione-based polymers for polymer solar cells Reviewed

    Ikai Tomoyuki, Azam A. K. M. Fakhrul, Kuzuba Mitsuhiro, Kuwabara Takayuki, Maeda Katsuhiro, Takahashi Kohshin, Kanoh Shigeyoshi

    SYNTHETIC METALS   Vol. 162 ( 17-18 ) page: 1707-1712   2012.10

  46. Helical polymer brushes with a preferred-handed helix-sense triggered by a terminal optically active group in the pendant. Reviewed

    Maeda K, Wakasone S, Shimomura K, Ikai T, Kanoh S

    Chemical communications (Cambridge, England)   Vol. 48 ( 27 ) page: 3342-3344   2012.4

  47. Controlled Immobilization of Polysaccharide Derivatives for Efficient Chiral Separation Reviewed

    Okamoto Yoshio, Ikai Tomoyuki, Shen Jun

    ISRAEL JOURNAL OF CHEMISTRY   Vol. 51 ( 10 ) page: 1096-1106   2011.11

  48. Synthesis of polysaccharide derivatives bearing pyridine N-oxide groups and their use as asymmetric organocatalysts Reviewed

    Ikai Tomoyuki, Moro Munetsugu, Maeda Katsuhiro, Kanoh Shigeyoshi

    REACTIVE & FUNCTIONAL POLYMERS   Vol. 71 ( 10 ) page: 1055-1058   2011.10

  49. Synthesis and Characterization of Thieno[3,4-b]thiophene-Based Copolymers Bearing 4-Substituted Phenyl Ester Pendants: Facile Fine-Tuning of HOMO Energy Levels Reviewed

    Yamamoto Tomoyuki, Ikai Tomoyuki, Kuzuba Mitsuhiro, Kuwabara Takayuki, Maeda Katsuhiro, Takahashi Kohshin, Kanoh Shigeyoshi

    MACROMOLECULES   Vol. 44 ( 17 ) page: 6659-6662   2011.9

  50. Being Dignified, and Moreover Warm, as Such One is Gentle

    IKAI Tomoyuki

      Vol. 60 ( 8 ) page: .   2011.8

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  51. Synthesis and Chiral Recognition Ability of a Poly(phenylenevinylene)-Encapsulated Amylose Derivative Reviewed

    Tamura Kazumi, Sam Nor Syahidah Md, Ikai Tomoyuki, Okamoto Yoshio, Yashima Eiji

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN   Vol. 84 ( 7 ) page: 741-747   2011.7

  52. Chiral recognition ability of cellulose derivatives bearing pyridyl and bipyridyl residues as chiral stationary phases for high-performance liquid chromatography Reviewed

    Katoh Yasunaka, Tsujimoto Yasutaka, Yamamoto Chiyo, Ikai Tomoyuki, Kamigaito Masami, Okamoto Yoshio

    POLYMER JOURNAL   Vol. 43 ( 1 ) page: 84-90   2011.1

  53. Synthesis and Immobilization of Amy lose Derivatives Bearing a 4-tert-Butylbenzoate Group at the 2-Position and 3,5-Dichlorophenylcarbamate/3-(Triethoxysilyl)propylcarbamate Groups at 3-and 6-Positions as Chiral Packing Material for HPLC Reviewed

    Shen Jun, Ikai Tomoyuki, Shen Xiande, Okamoto Yoshio

    CHEMISTRY LETTERS   Vol. 39 ( 5 ) page: 442-444   2010.5

  54. Immobilization of 3,5-dimethylphenylcarbamates of cellulose and amylose onto silica gel using (3-glycidoxypropyl)triethoxysilane as linker. Reviewed

    Tang S, Ikai T, Tsuji M, Okamoto Y

    Journal of separation science   Vol. 33 ( 9 ) page: 1255-1263   2010.5

  55. Synthesis and chiral recognition of novel amylose derivatives containing regioselectively benzoate and phenylcarbamate groups. Reviewed

    Shen J, Ikai T, Okamoto Y

    Journal of chromatography. A   Vol. 1217 ( 7 ) page: 1041-1047   2010.2

  56. Immobilization and chiral recognition of 3,5-dimethylphenylcarbamates of cellulose and amylose bearing 4-(trimethoxysilyl)phenylcarbamate groups. Reviewed

    Tang S, Ikai T, Tsuji M, Okamoto Y

    Chirality   Vol. 22 ( 1 ) page: 165-172   2010.1

  57. Enantioseparation using amylose esters as chiral stationary phases for high-performance liquid chromatography Reviewed

    Sugiura Yuri, Yamamoto Chiyo, Ikai Tomoyuki, Kamigaito Masami, Okamoto Yoshio

    POLYMER JOURNAL   Vol. 42 ( 1 ) page: 31-36   2010.1

  58. Structure control of polysaccharide derivatives for efficient separation of enantiomers by chromatography. Reviewed

    Ikai T, Okamoto Y

    Chemical reviews   Vol. 109 ( 11 ) page: 6077-6101   2009.11

  59. Preparation and HPLC application of chiral stationary phase from 4-tert-butylphenylcarbamates of cellulose and amylose immobilized onto silica gel. Reviewed

    Li JQ, Ikai T, Okamoto Y

    Journal of separation science   Vol. 32 ( 17 ) page: 2885-2891   2009.9

  60. Chiral HPLC for efficient resolution of enantiomers. Reviewed

    Okamoto Y, Ikai T

    Chemical Society reviews   Vol. 37 ( 12 ) page: 2593-2608   2008.12

  61. Immobilized-type chiral packing materials for HPLC based on polysaccharide derivatives. Reviewed

    Ikai T, Yamamoto C, Kamigaito M, Okamoto Y

    Journal of chromatography. B, Analytical technologies in the biomedical and life sciences   Vol. 875 ( 1 ) page: 2-11   2008.11

  62. Organic-inorganic hybrid materials for efficient enantioseparation using cellulose 3,5-dimethylphenylcarbamate and tetraethyl orthosilicate. Reviewed

    Ikai T, Yamamoto C, Kamigaito M, Okamoto Y

    Chemistry, an Asian journal   Vol. 3 ( 8-9 ) page: 1494-1499   2008.9

  63. A maltooctaose derivative ("Acyclodextrin") as a chiral stationary phase for enantioselective gas chromatography Reviewed

    Sicoli Giuseppe, Tomoyuki Ikai, Jicsinszky Laszlo, Schurig Volker

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY   ( 25 ) page: 4241-4244   2008.9

  64. セルロース誘導体とケイ素アルコキシドを用いた有機‐無機ハイブリッドビーズの調製とキラルHPLCへの応用

    井改知幸, 山本智代, 上垣外正己, 岡本佳男

    シンポジウム「モレキュラー・キラリティー」講演要旨集   Vol. 2008   page: (JA)194-195,(EN)193-195   2008.5

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  65. セルロース誘導体とケイ素アルコキシドを用いた光学分割用有機‐無機ハイブリッドビーズの開発

    井改知幸, 上垣外正己, 山本智代, 岡本佳男

    高分子学会予稿集(CD-ROM)   Vol. 57 ( 1 Disk1 ) page: 3PD104   2008.5

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  66. Immobilization of polysaccharide derivatives onto silica gel Facile synthesis of chiral packing materials by means of intermolecular polycondensation of triethoxysilyl groups. Reviewed

    Ikai T, Yamamoto C, Kamigaito M, Okamoto Y

    Journal of chromatography. A   Vol. 1157 ( 1-2 ) page: 151-158   2007.7

  67. アルコキシシリル基を有する多糖誘導体を用いた光学分割材料の開発

    井改知幸, 上垣外正己, 山本智代, 岡本佳男

    高分子学会予稿集(CD-ROM)   Vol. 56 ( 1 Disk1 ) page: 2M28   2007.5

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  68. 嵩高い側鎖を有する新規セルロース誘導体の合成と光学分割

    石竹賢次, 井改知幸, 上垣外正己, 山本智代, 岡本佳男

    高分子学会予稿集(CD-ROM)   Vol. 56 ( 1 Disk1 ) page: 3PA117   2007.5

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  69. Preparation and chiral recognition ability of crosslinked beads of polysaccharide derivatives Reviewed

    Ikai Tomoyuki, Yamamoto Chiyo, Kamigaito Masami, Okamoto Yoshio

    JOURNAL OF SEPARATION SCIENCE   Vol. 30 ( 7 ) page: 971-978   2007.5

  70. Calix[4]arene-based bis[2]catenanes: synthesis and chiral resolution. Reviewed

    Molokanova O, Bogdan A, Vysotsky MO, Bolte M, Ikai T, Okamoto Y, Böhmer V

    Chemistry (Weinheim an der Bergstrasse, Germany)   Vol. 13 ( 21 ) page: 6157-6170   2007

  71. Immobilized polysaccharide derivatives: chiral packing materials for efficient HPLC resolution. Reviewed

    Ikai T, Yamamoto C, Kamigaito M, Okamoto Y

    Chemical record (New York, N.Y.)   Vol. 7   page: 91-103   2007

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  72. Efficient immobilization of cellulose phenylcarbamate bearing alkoxysilyl group onto silica gel by intermolecular polycondensation and its chiral recognition Reviewed

    Ikai Tomoyuki, Yamamoto Chiyo, Kamigaito Masami, Okamoto Yoshio

    CHEMISTRY LETTERS   Vol. 35 ( 11 ) page: 1250-1251   2006.11

  73. High-performance liquid chromatographic enantioseparations on capillary columns containing crosslinked polysaccharide phenylcarbamate derivatives attached to monolithic silica. Reviewed

    Chankvetadze B, Kubota T, Ikai T, Yamamoto C, Kamigaito M, Tanaka N, Nakanishi K, Okamoto Y

    Journal of separation science   Vol. 29 ( 13 ) page: 1988-1995   2006.8

  74. 高い光学分割能を有するセルロース誘導体架橋ビーズの開発

    井改知幸, 山本智代, 上垣外正己, 岡本佳男

    高分子学会予稿集(CD-ROM)   Vol. 55 ( 1 Disk1 ) page: 2PE111   2006.5

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  75. Enantioseparation by HPLC using phenylcarbonate, benzoylformate, p-toluenesulfonylcarbamate, and benzoylcarbamates of cellulose and amylose as chiral stationary phases. Reviewed

    Ikai T, Yamamoto C, Kamigaito M, Okamoto Y

    Chirality   Vol. 17   page: 299-304   2005.6

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  76. 多糖誘導体ビーズの調製とキラルHPLCへの応用

    井改知幸, 山本智代, 上垣外正己, 岡本佳男

    高分子学会予稿集(CD-ROM)   Vol. 54 ( 1 Disk1 ) page: 1L22   2005.5

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  77. 多糖誘導体ビーズからなる次世代型HPLC用キラル充填剤の開発

    井改知幸, 山本智代, 上垣外正己, 岡本佳男

    ポリマー材料フォーラム講演予稿集   Vol. 13th   page: 219   2004.10

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  78. 構造制御された多糖誘導体から成るビーズの調製とキラルHPLCへの応用

    井改知幸, 山本智代, 上垣外正己, 岡本佳男

    中部化学関係学協会支部連合秋季大会講演予稿集   Vol. 35th   page: 126   2004.9

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  79. 多糖誘導体多孔質ビーズの調製とキラルHPLCへの応用

    井改知幸, 山本智代, 上垣外正己, 岡本佳男

    高分子学会予稿集(CD-ROM)   Vol. 53 ( 2 Disk1 ) page: 3E07   2004.9

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  80. Rational synthesis of multicyclic bis[2]catenanes. Reviewed

    Bogdan A, Vysotsky MO, Ikai T, Okamoto Y, Böhmer V

    Chemistry (Weinheim an der Bergstrasse, Germany)   Vol. 10   page: 3324-3330   2004.7

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  81. High-performance liquid chromatographic enantioseparations on monolithic silica columns containing a covalently attached 3,5-dimethylphenylcarbamate derivative of cellulose. Reviewed

    Chankvetadze B, Ikai T, Yamamoto C, Okamoto Y

    Journal of chromatography. A   Vol. 1042   page: 55-60   2004.7

  82. セルロース誘導体多孔質ビーズの調製とキラルHPLCへの応用

    井改知幸, 山本智代, 上垣外正己, 岡本佳男

    高分子学会予稿集(CD-ROM)   Vol. 53 ( 1 ) page: IIPA115   2004.5

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    Language:Japanese  

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Presentations 62

  1. Defect-Free Ladder Polymers with a One-Handed Helical Geometry: Synthesis and Application Invited International conference

    Tomoyuki Ikai

    2024.3.19 

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    Event date: 2024.3

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  2. ラダー化が導く二次構造制御の幕開け Invited

    井改知幸

    2023年度 化学生命工学講演会「化学生命の最前線1」  2024.2.2  名古屋大学

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    Event date: 2024.2

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋   Country:Japan  

  3. Defect-free synthesis and function of helical ladder polymers Invited International conference

    Tomoyuki Ikai

    2024 Trilateral Conference on Modern Challenges in Polymer Science and Technology  2024.1.24 

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    Event date: 2024.1

    Language:English   Presentation type:Oral presentation (keynote)  

    Venue:Tainan City   Country:Taiwan, Province of China  

  4. Synthesis and application of one-handed helical ladder polymers Invited International conference

    Tomoyuki Ikai

    National Tsing Hua University Seminar  2024.1.23 

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    Event date: 2024.1

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Taiwan  

  5. Defect Free Synthesis of Fully -Conjugated Optically-Active Helical Ladder Polymers Consisting of Totally Achiral Monomer Units International coauthorship International conference

    Tomoyuki Ikai, Sayaka Miyoshi, Kosuke Oki, Ranajit Saha, Yuh Hijikata, Eiji Yashima

    MRM2023/IUMRS-ICA2023  2023.12.12 

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    Event date: 2023.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  6. Synthesis of single-handed helical spiro-conjugated ladder polymers with or without a helical cavity Invited International conference

    Tomoyuki Ikai

    14th Japan-China Joint Symposium on Conduction and Photoconduction in Organic Solids and Related Phenomena  2023.12.7 

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    Event date: 2023.12

    Language:English   Presentation type:Oral presentation (invited, special)  

  7. 様々な置換基を導入した2-アリールピリジル-N-オキシド部位を有する ポリアセチレン誘導体の合成とHPLC用キラル固定相への応用

    井改知幸、伊藤正樹、沖光脩、鈴木望、八島栄次

    高分子討論会2023  2023.9.27  高分子学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:香川   Country:Japan  

  8. Helical ladderization: らせん二次構造の自在構築 Invited

    井改知幸

    第49回中国四国地区高分子講座  2023.9.1  高分子学会 中国四国支部

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:愛媛大学  

  9. Synthesis of a Fully -Conjugated Helical Ladder Polymers and Resolution into a Pair of Enantiomeric Helices International coauthorship

    Tomoyuki Ikai, Sayaka Miyoshi, Kosuke Oki, Ranajit Saha, Yuh Hijikata, Eiji Yashima

    Molecular Chirality 2023  2023.6.16 

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    Event date: 2023.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  10. 不斉増幅を利用したポリ(ビフェニルイルアセチレン)誘導体の らせん構造制御とキラル固定相への応用

    井改知幸、森田祐己、間嶋剛、八島栄次

    第72回高分子学会年次大会  2023.5.25  高分子学会

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    Event date: 2023.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:群馬   Country:Japan  

  11. アキラルユニットのみからなる光学活性な 全共役ヘリカルラダーポリマーの合成と光学特性

    井改知幸、三好沙也加、八島栄次

    第72回高分子学会年次大会  2023.5.25  高分子学会

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    Event date: 2023.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:群馬   Country:Japan  

  12. Defect-Free Synthesis of Helical Ladder Polymers Invited International conference

    Tomoyuki Ikai

    The 2nd Workshop on Ladder Polymer Science  2022.11.22  Ladder Polymer Science

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    Event date: 2022.11

    Language:English   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:Okinawa   Country:Japan  

  13. Synthesis of Single-Handed Spiro-Conjugated Helical Ladder Polymers International coauthorship International conference

    Tomoyuki Ikai, Wei Zheng, Eiji Yashima

    Molecular Chirality Asia 2022  2022.10.31  Prof. Shunai Che

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    Event date: 2022.10

    Language:English   Presentation type:Poster presentation  

    Venue:Online  

  14. ラセン構造を有するラダーポリマーの開発と機能 Invited

    井改知幸

    持続社会発展のための機能化学研究委員会 第5回(R4-2)定期研究会  2022.10.11  持続社会発展のための機能化学研究委員会

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    Event date: 2022.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京   Country:Japan  

  15. ラダー化を利用した二次構造制御 Invited

    井改知幸

    22-1 高分子学会講演会  2022.7.13  高分子学会

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    Event date: 2022.7

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン   Country:Japan  

  16. 9,9’-スピロビフルオレンユニットを含有する一方向巻きスピロ共役型ヘリカルラダーポリマーの合成

    松本武大, 加藤 義貴, 沖 光脩, 井改 知幸, 八島 栄次

    日本化学会 第102春季年会 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  17. 側鎖の一部にカルボキシ基を導入したビフェニルイルアセチレン系コポリマーの合成とらせん構造制御

    武田将貴, 井改知幸, 八島栄次

    日本化学会 第102春季年会 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  18. 光学活性置換基を主鎖近傍に導入したポリ(ビフェニルイルアセチレン)誘導体の合成とらせん構造制御

    森田祐己, 間嶋剛, 井改知幸, 八島栄次

    日本化学会 第102春季年会 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  19. Synthesis of Double-Stranded Titanium(IV) Helicates Composed of Oligophenol Units and Its Water-Mediated Reversible Three-State Structural Conversion International conference

    M. Ito, M. Itakura, D. Taura, N. Ousaka, T. Ikai, E. Yashima

    Pacifichem 2021 

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    Event date: 2021.12

    Language:English   Presentation type:Poster presentation  

  20. Synthesis and Macromolecular Helicity Control of Poly(biphenylylacetylene)s Bearing Various Optically Active Pendants in the Vicinity of the Main-Chain International conference

    Y. Morita, T. Majima, T. Ikai, E. Yashima

    Pacifichem 2021 

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    Event date: 2021.12

    Language:English   Presentation type:Poster presentation  

  21. Synthesis and ultra-remote helicity control of water-soluble poly(biphenylylacetylene)s bearing optically active oligoethylene glycol pendants International conference

    K. Nakamura, K. Mizumoto, T. Ikai, E. Yashima

    Pacifichem 2021 

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    Event date: 2021.12

    Language:English   Presentation type:Poster presentation  

  22. One-Step Simultaneous Synthesis of Multiple Helicenes Using a Chrysene Framework International conference

    S. Yamakawa, T. Ikai, N. Suzuki, E. Yashima

    Pacifichem 2021 

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    Event date: 2021.12

    Language:English   Presentation type:Poster presentation  

  23. Synthesis of Poly(biphenylylacetylene)s Bearing Optically Active 1-Ethoxyethoxy Groups in the Side-Chain and Their Chiral Amplification International conference

    T. Majima, T. Ikai, E. Yashima

    Pacifichem 2021 

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    Event date: 2021.12

    Language:English   Presentation type:Poster presentation  

  24. Synthesis of optically active coordination polymers composed of rhodium binuclear complexes with dynamic propeller chirality and chiral amplification International conference

    S. Okuda, A. Urushima, N. Ousaka, T. Ikai, E. Yashima

    Pacifichem 2021 

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    Event date: 2021.12

    Language:English   Presentation type:Poster presentation  

  25. 主鎖近傍にカルボキシ基を導入したビフェニルイルアセチレン系共重合体の合成とらせん構造制御

    武田将貴, 井改知幸, 八島栄次

    2021年度東海高分子研究会学生発表会 

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    Event date: 2021.12

    Language:Japanese   Presentation type:Poster presentation  

  26. 全共役ヘリカルラダー高分子の合成と光学特性

    三好沙也加, 井改知幸, 八島栄次

    2021年度東海高分子研究会学生発表会 

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    Event date: 2021.12

    Language:Japanese   Presentation type:Poster presentation  

  27. 側鎖のデラセミ化に基づくポリ(ビアリールイルアセチレン)誘導体のラセン構造制御及び不斉有機触媒能の発現

    伊藤正樹, 安藤光香, 石立涼馬, 井改知幸, 前田勝浩, 八島栄次

    Molecular Chirality 2021 

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    Event date: 2021.11

    Language:Japanese   Presentation type:Poster presentation  

  28. 主鎖近傍に光学活性置換基を導入したポリ(ビフェニルイルアセチレン)誘導体の合成と不斉増幅

    森田祐己, 間嶋剛, 井改知幸, 八島栄次

    Molecular Chirality 2021 

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    Event date: 2021.11

    Language:Japanese   Presentation type:Poster presentation  

  29. 光学活性なビナフチル基含有オリゴエチレングルコール鎖を側鎖に導入した水溶性ポリ(ビフェニルイルアセチレン)誘導体の合成と超遠隔不斉誘導

    中村光志, 水本幸助, 井改知幸, 八島栄次

    Molecular Chirality 2021 

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    Event date: 2021.11

    Language:Japanese   Presentation type:Poster presentation  

  30. 主鎖近傍にメトキシカルボニル基を導入したポリ(ビフェニルイルアセチレン)誘導体のらせん構造制御とスイッチングキラル固定相への応用

    都築敦史, 井改知幸, 八島栄次

    Molecular Chirality 2021 

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    Event date: 2021.11

    Language:Japanese   Presentation type:Poster presentation  

  31. 芳香族側鎖を導入したポリ(ビフェニルイルアセチレン)誘導体のらせん構造制御とキラル固定相への応用

    奥田省吾, 井改知幸, 八島栄次

    Molecular Chirality 2021 

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    Event date: 2021.11

    Language:Japanese   Presentation type:Poster presentation  

  32. 構造欠陥のない一方向巻きスピロ共役型ヘリカルラダーポリマーの合成

    井改知幸,Wei Zheng,八島栄次

    Molecular Chirality 2021 

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    Event date: 2021.11

    Language:Japanese   Presentation type:Oral presentation (general)  

  33. ラダー化によるラセン秩序の創出とキラル機能 Invited

    井改知幸

    第25回VBLシンポジウム 

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    Event date: 2021.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  34. カルボキシ基を主鎖近傍に導入したポリ(ビフェニルイルアセチレン)誘導体の合成とらせん構造制御

    武田将貴, 井改知幸, 八島栄次

    第52回中部化学関係学協会支部連合秋季大会 

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    Event date: 2021.10

    Language:Japanese   Presentation type:Oral presentation (general)  

  35. 光学活性置換基を主鎖近傍に導入したポリ(ビフェニルイルアセチレン)誘導体の合成と不斉増幅

    森田祐己, 間嶋剛, 井改知幸, 八島栄次

    第52回中部化学関係学協会支部連合秋季大会 

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    Event date: 2021.10

    Language:Japanese   Presentation type:Oral presentation (general)  

  36. フルオレン骨格を含有する光学活性π共役ヘリカルラダーポリマーの合成

    三好沙也加, 井改知幸, 八島栄次

    第52回中部化学関係学協会支部連合秋季大会 

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    Event date: 2021.10

    Language:Japanese   Presentation type:Oral presentation (general)  

  37. 側鎖末端に光学活性なビナフチル基を導入した水溶性ポリ(ビフェニルイルアセチレン)誘導体の合成と分子内包接錯体形成を利用した超遠隔不斉誘導

    中村光志, 水本幸助, 井改知幸, 八島栄次

    第52回中部化学関係学協会支部連合秋季大会 

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    Event date: 2021.10

    Language:Japanese   Presentation type:Oral presentation (general)  

  38. 主鎖近傍に極性官能基を導入したポリ(ビフェニルイルアセチレン)誘導体のシリカゲルへの固定化とスイッチングキラル固定相への応用

    都築敦史, 井改知幸, 八島栄次

    第70回高分子討論会 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  39. 新規π共役ヘリカルラダーポリマーの合成と光学特性

    三好沙也加, 井改知幸, 八島栄次

    第70回高分子討論会 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

  40. ラセミ体からなるポリ(ビアリールイルアセチレン)誘導体へのらせん構造の誘起と記憶、不斉有機触媒への応用

    伊藤正樹, 安藤光香, 石立涼馬, 井改知幸, 前田勝浩, 八島栄次

    第70回高分子討論会 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

  41. オリゴエチレングリコール鎖を介して光学活性なビナフチル基を側鎖に導入した水溶性ポリ(ビフェニルイルアセチレン)誘導体の合成と超遠隔不斉誘導

    中村光志, 水本幸助, 井改知幸, 八島栄次

    第70回高分子討論会 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

  42. 側鎖の一部にカルボキシ基を導入したポリ(ビフェニルイルアセチレン)誘導体の合成とらせん構造制御

    武田将貴, 井改知幸, 八島栄次

    第70回高分子討論会 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

  43. 光学活性側鎖を主鎖近傍に導入したポリアセチレン誘導体の合成と不斉増幅

    森田祐己, 間嶋剛, 井改知幸, 八島栄次

    第70回高分子討論会 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Poster presentation  

  44. オリゴフェノール誘導体からなる二重らせんチタンヘリケートの合成とその可逆的三状態構造変換

    伊藤正樹, 板倉学, 田浦大輔, 逢坂直樹, 井改知之, 八島栄次

    第70回高分子学会年次大会 

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    Event date: 2021.5

    Language:Japanese   Presentation type:Oral presentation (general)  

  45. クリセン骨格を活用した円偏光発光性多重ヘリセンの同時合成

    山川翔也, 井改知幸, 鈴木望, 八島栄次

    第70回高分子学会年次大会 

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    Event date: 2021.5

    Language:Japanese   Presentation type:Oral presentation (general)  

  46. 光学活性な1-エトキシエトキシ基を側鎖に有するポリ(ビフェニルイルアセチレン)誘導体の合成と不斉増幅挙動

    間嶋剛, 井改知幸, 八島栄次

    第70回高分子学会年次大会 

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    Event date: 2021.5

    Language:Japanese   Presentation type:Poster presentation  

  47. 主鎖近傍に光学活性基を導入したポリ(ビフェニルイルアセチレン)誘導体の合成とらせん構造制御

    森田祐己, 間嶋剛, 井改知幸, 八島栄次

    第70回高分子学会年次大会 

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    Event date: 2021.5

    Language:Japanese   Presentation type:Poster presentation  

  48. 光学活性なオリゴエチレングリコール鎖を側鎖に有する水溶性ポリ(ビフェニルイルアセチレン)誘導体の合成とらせん構造制御

    中村光志, 水本幸助, 井改知幸, 八島栄次

    第70回高分子学会年次大会 

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    Event date: 2021.5

    Language:Japanese   Presentation type:Poster presentation  

  49. 動的な軸性キラリティを有する触媒活性ユニットを側鎖に導入したポリアセチレン誘導体のラセン構造制御および不斉有機触媒への応用 Invited

    井改知幸, 安藤光香, 石立涼馬, 前田勝浩, 八島栄次

    第69回高分子討論会  2020.9.17 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  50. オリゴエチレングリコール鎖を有するポリ(ビフェニルイルアセチレン)誘導体の水中での触媒的らせん誘起とその記憶 Invited

    井改知幸, 水本幸助, 池田莉穂, 石立涼馬, 前田勝浩, 八島栄次

    第69回高分子討論会  2020.9.17 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  51. 光学活性なポリエチレングリコール鎖を側鎖に有するポリ(ビフェニルイルアセチレン)誘導体のらせん構造制御

    井改知幸, 水本幸助, 池田莉穂, 石立涼馬, 前田勝浩, 八島栄次

    第69回高分子学会年次大会  2020.5.28 

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    Event date: 2020.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡国際会議場  

  52. ピリジンN-オキシド部位を側鎖に導入したポリ(ビフェニルイルアセチレン)誘導体のラセン構造制御および不斉有機触媒への応用

    井改知幸・安藤光香・石立涼馬・ 前田勝浩・八島栄次

    日本化学会第100春季年会(2020) 

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    Event date: 2020.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  53. 触媒活性基を側鎖に導入したらせん高分子の合成とらせん構造制御および不斉触媒反応への応用

    井改知幸・安藤光香・石立涼馬・前田勝浩・八島栄次

    第28回ポリマー材料フォーラム 

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    Event date: 2019.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  54. Synthesis of Water-Soluble Poly(biphenylylacetylene)s Bearing Polyethylene Glycol Pendants and Their Chiral Recognition Abilities

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    Event date: 2019.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  55. 高分子主鎖に一方向巻きラセン構造を付与する新アプローチ Invited

    井改知幸

    第169回東海高分子研究会講演会 

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    Event date: 2019.8

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  56. トリプチセン骨格を利用した一方向巻きヘリカルラダーポリマーの開発

    井改知幸・ 吉田拓夢・篠原健一・谷口剛史・和田侑也・Timothy M. Swager

    第68回高分子年次大会 

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    Event date: 2019.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  57. グルコースユニット含有光学活性ポリマーの合成とその円偏光発光特性

    井改知幸・粟田聖矢・篠原健一

    第67回高分子討論会 

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    Event date: 2018.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  58. Triptycene-based chiral materials International conference

    Tomoyuki Ikai

    4th Molecular Chirality Asia 

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    Event date: 2018.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:China  

  59. Development of cellulose-based chiral fluorescent sensors Invited International conference

    Tomoyuki Ikai

    International Congress on Pure & Applied Chemistry 2018 

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    Event date: 2018.3

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Cambodia  

  60. 2. Synthesis of helical polyisocyanides containing a densely packed quinquethiophene-based pendant array with micrometer-order length International conference

    Tomoyuki Ikai

    14th European Conference on Molecular Electronics 

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    Event date: 2017.8 - 2017.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Germany  

  61. Development of Efficient Chiral Packing Materials for HPLC Using Polysaccharide Derivatives with Alkoxysilyl Groups

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    Event date: 2007.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  62. Development of Chiral Packing Materials Consisting of Polysaccharide Derivative Bearing Alkoxysilyl Groups

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    Event date: 2007.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

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Research Project for Joint Research, Competitive Funding, etc. 6

  1. ラダー化が拓く配列と高次構造の自在制御と機能創出

    Grant number:21460342  2021.10 - 2025.3

    戦略的創造研究推進事業(さきがけ)  「原子・分子の自在配列と特性・機能」領域

    井改知幸

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    Grant type:Competitive

    Grant amount:\52000000 ( Direct Cost: \40000000 、 Indirect Cost:\12000000 )

  2. 合成ラセン高分子の集積化を基盤とする超分子構造体の創成と応用

    Grant number:21H01984  2021.4 - 2024.3

    科学研究費助成事業   基盤研究(B)

    井改知幸

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    Grant type:Competitive

    Grant amount:\15020000 ( Direct Cost: \13400000 、 Indirect Cost:\1620000 )

  3. ヘリカルおよび共平面ラダー高分子の精密合成とヘリシティ制御に基づく機能創出

    2024.4 - 2025.3

    研究助成 

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\2000000

  4. ラダー・ラセン・超分子の構造特性を併せ持つ新材料の創製と応用展開

    2023.10 - 2024.9

    第54回自然科学研究助成 

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4500000

  5. ラダー骨格を導入したラセンの超分子化に基づく自己修復アクチュエータの開発

    2023.8 - 2025.3

    特別研究助成 

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    Grant type:Competitive

    Grant amount:\3000000

  6. 記憶力を有するラセン状ポリアセチレンのラセン誘起・記憶メカニズムの解明と、さらなる不斉増幅の検討

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    Authorship:Coinvestigator(s)  Grant type:Collaborative (industry/university)

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KAKENHI (Grants-in-Aid for Scientific Research) 33

  1. ラダー化が拓く配列と高次構造の自在制御と機能創出

    Grant number:JPMJPR21A1  2021.10 - 2025.3

    国立研究開発法人科学技術振興機構  戦略的創造研究推進事業(さきがけ)  「原子・分子の自在配列と特性・機能」領域

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\52000000 ( Direct Cost: \40000000 、 Indirect Cost:\12000000 )

  2. 合成ラセン高分子の集積化を基盤とする超分子構造体の創成と応用

    Grant number:21H01984  2021.4 - 2024.3

    文部科学省  科学研究費助成事業  基盤研究(B)

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\15020000 ( Direct Cost: \13400000 、 Indirect Cost:\1620000 )

  3. Targeted synthesis of ladder polymers and functional exploration based on static, dynamic, and supramolecular chirality control

    Grant number:24K01537  2024.4 - 2027.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Principal investigator 

    Grant amount:\18460000 ( Direct Cost: \14200000 、 Indirect Cost:\4260000 )

  4. ラセンのバネ運動と超分子の自己修復能を活用したフレキシブルデバイスの創製

    Grant number:23K17939  2023.6 - 2025.3

    科学研究費助成事業  挑戦的研究(萌芽)

    井改 知幸

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    Authorship:Principal investigator 

    Grant amount:\6500000 ( Direct Cost: \5000000 、 Indirect Cost:\1500000 )

    本研究では、ラセンと超分子の強みを掛け合わせて生み出される「規則性と柔軟性を兼ね備えた新規な構造特性」を戦略的に活用し、革新的な材料・デバイス開発を推進します。すなわち、「外部刺激に応答したラセン軸方向のバネ運動に連動して駆動する自己修復アクチュエータ」と「ラセン軸方向の高い電荷輸送特性と伸縮運動性に加え、自己修復能を併せ持つ前例のないフレキシブルデバイス」の開発を目指します。

  5. Development of Ultimate Functions Based on Helical Polymers with Helicity Memory

    Grant number:18H05209  2018.4 - 2023.3

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    Authorship:Coinvestigator(s)  Grant type:Competitive

  6. Studies on the helical polymer-based chiral materials capable of being produced through chiral amplification from an infinitesimal chiral source

    Grant number:17K05875  2017.4 - 2020.3

    Ikai Tomoyuki

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4810000 ( Direct Cost: \3700000 、 Indirect Cost:\1110000 )

    We developed an unprecedented one-step synthesis of one-dimensional macromolecular assemblies by a simple mixing of a glycine-based isocyanide with a nickel catalyst, in which helical constituent polymers are connected end-to-end through multiple hydrogen bonds. The applicable scope of this novel polymerization system (transit-type merry-go-round polymerization) is not confined to a particular monomer bearing a specific pendant, but covers a wide range of isocyanide monomers with or without aromatic and other functional groups. In addition, copolymerization with a chiral isocyanide (1 mol %) with an analogous pendant provided an almost complete one-handed helical supramolecular fiber owing to intramolecular/intermolecular dual chiral amplifications. The simplicity and broad applicability of this approach as well as an exquisite chiral amplification enable the creation of a wide variety of functional supramolecular assemblies and afford access to new supramolecular materials.

  7. 基盤研究(C)

    2017.4 - 2020.3

    基盤研究(C) 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  8. 植物由来エラジタンニンの分子骨格を巧みに利用したらせん状ナノ空孔の構築と不斉有機分子触媒への応用

    2017

    松籟科学技術振興財団 

    井改知幸

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  9. Development of Functional Materials Utilizing Structural Characteristics of Helical Polymers Capable of Interconverting Dynamic and Static Properties

    Grant number:16H04154  2016.4 - 2019.3

    Maeda Katsuhiro

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    Covalent- and noncovalent-bonding type colorimetric chiral sensors, chiral stationary phases capable of switching their chiral recognition abilities, chirality-switchable circularly polarized luminescent materials have been developed by utilizing the unique structural property of poly(diphenylacetylene) derivatives which is reversibly switchable between static helical polymers and dynamic helical polymers by changing temperature. Moreover, we have succeeded in determining the detailed features of helical structure of poly(diphenylacetylene) derivatives including stereostructure, activation energy of helix inversion, and helix-sense.

  10. 糖類の不斉な骨格を利用したらせん状分子構築と円偏光発光材料への応用

    2016

    畠山文化財団 

    井改知幸

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  11. Chiral stationary phases consisting of p-conjugated polymers bearing glucose-linked biphenyl units: Reversible switching of recognition abilities based on coil-to-helix transition

    Grant number:26410129  2014.4 - 2017.3

    Ikai Tomoyuki

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\5200000 ( Direct Cost: \4000000 、 Indirect Cost:\1200000 )

    An optically active p-conjugated polymer (poly-1) consisting of alternating thieno[3,4-b]thiophene and glucose-linked biphenyl units was synthesized. We found that poly-1 undergoes a conformational transition between random-coil and helix in both solution and the solid state in response to the external solvent environment. Coated-type chiral stationary phases (CSPs) were prepared from both the random-coil and helical poly-1, and the influence of the polymer backbone structure on chiral recognition ability was evaluated. The two CSPs showed complementary resolution abilities. In addition, an immobilized-type CSP with universal solvent durability was also prepared using an alkyne-appended poly-1 analogue and an azide-functionalized silica gel. The resulting CSP displayed repeatable switching of the chiral recognition ability based on a coil-to-helix transition of the polymer backbone by alternate column treatment with common organic solvents, such as chloroform and acetonitrile.

  12. 高次構造変換可能な軸不斉含有π共役高分子を利用した動的キラル識別材料の開発

    2014

    小笠原科学技術振興財団 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  13. らせん構造制御を新基軸とする両極性有機半導体の開発と有機薄膜太陽電池の高耐久化

    2013

    野口研究所 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  14. ビフェニル基含有共役高分子を用いた不斉識別能の切換えが可能なキラル固定相の開発

    2013

    住友財団 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  15. らせん構造形成を基盤とする新規有機半導体材料の開発

    2013

    北陸銀行 

    井改知幸

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  16. Development of high-performance inverted thin film organic solar cell based on the synthesis of novel polymer

    Grant number:24350092  2012.4 - 2015.3

    TAKAHASHI KOHSHIN

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid)  Grant type:Competitive

    To increase the open-circuit voltage of inverted polymer solar cells (PSCs) and to improve the productivity of film preparation, we synthesized novel polymers consisting of benzo[1,2-b:4,5-b0]dithiophene and thieno[3,4-b]thiophene units (PTB-F), containing 4-fluorophenyl pendants as electron donor materials. We found that both the HOMO and LUMO were linearly deepened with an increasing TT-F content. Meanwhile, the solubility to chlorobenzene decreased with the increasing TT-F content. These polymers were used as electron donor materials in inverted-type PSCs. 4-Fluorophenyl pendants also influenced the morphology of the PTBFx:PC61BM blends, the crystallinity and orientation in the active layers, and hole mobility, which appear to be closely related to the photovoltaic properties. PTB-F75 bearing a moderate content of 4-fluorophenyl pendants provided superior performances with power conversion efficiency of 4.3%.

  17. Development of chiral stationary phases capable of switchable enantioseparations based on helical polymers bearing biphenyl pendants

    Grant number:24750100  2012.4 - 2014.3

    IKAI Tomoyuki

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4550000 ( Direct Cost: \3500000 、 Indirect Cost:\1050000 )

    We have developed poly(biphenylylacetylene)s, which have a dynamic axial chirality and forms a preferred-handed helical conformation upon complexation with optically active compounds. The induced macromolecular helicity and axial chirality are memorized automatically and, further, are switchable in the solid state. This remarkable feature allowed us to develop a chiral packing material for the separation of enantiomers in which the elution order, or enantioselectivity, can be switched at will. In addition, we have synthesized poly(biphenylylacetylene)s bearing ester and carbamate groups as an interaction site and found that these polymers exhibited a high enantioselectivities against racemates, such as chiral metal complexes and axially chiral compounds.

  18. ビフェニル基含有らせん高分子を用いた不斉選択性の反転が可能なキラル固定相の創製

    2012.4 - 2014.3

    若手研究(B) 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  19. π共役高分子のキラリティー制御を新機軸とする至極の有機薄膜太陽電池開発

    2012 - 2013

    独立行政法人科学技術振興機構  A-Step 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  20. 固定状態におけるらせん構造制御を基軸とした新形態スイッチングキラル固定相の開発

    2012

    京都技術科学センター 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  21. 電場配向性らせん状ポリフェニルアセチレンのナノ構造制御と有機薄膜太陽電池への応用

    2012

    矢崎科学技術振興記念財団 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  22. 有機薄膜太陽電池用発電層のモルフォロジー究極制御〜相互貫入接合型構造の構築〜

    2012

    倉田記念日立科学技術財団 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  23. 有機薄膜太陽電池用p型有機半導体への応用を指向したホール輸送性セルロース誘導体の開発

    2012

    国際科学技術財団 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  24. 多糖類系バイオマスの構造特性を利用したキャリア輸送材料の創製

    2012

    高橋産業経済研究財団 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  25. Development of pi-conjugated helical polymers bearing both molecular recognition sites and dynamically axial chirality in the main chain

    Grant number:23550133  2011 - 2013

    MAEDA KATSUHIRO

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid)  Grant type:Competitive

    Poly(biphenyleneethynylene-alt-phenyleneethynylene) derivatives bearing crown ether moieties as molecular recognition sites in the main chains were synthesized, and chirality induction in the obtained polymers upon complexation with optically active amino acids and amines and the stability of the induced helical conformation were investigated by using circular dichroism (CD) spectroscopy in order to construct novel helical pi-conjugated polymers. The obtained polymers folded into a preferred-handed helical conformation in chloroform-acetonitrile (1/9) upon complexation with chiral guests. After replacement of the chiral guests with achiral guests, the induced macromolecular helicity could be maintained and the polymer showed a reversible conformational change between preferred-handed helix and random coil in response to change in solvents. This is the first example of macromolecular helicity memory capable of reversible conformational change.

  26. バイオマス資源糖類の構造特性を利用したホール輸送材料の創製

    2011

    高橋産業経済研究財団 

    井改知幸

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  27. 多糖のらせんキラリティーを利用した高分子不斉触媒の開発

    2011

    独立行政法人科学技術振興機構  A-Step 

    井改知幸

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  28. イオン性基をらせん状配列したアミロース型不斉有機分子触媒の開発

    2010

    イオン工学振興財団 

    井改知幸

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  29. バイオマス・多糖の構造特性を活かしたキラルラダーポリマーの合成と不斉認識材料への応用

    2010

    池谷科学技術振興財団 

    井改知幸

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  30. キラリティーセンシング材料「エキシマー蛍光性多糖誘導体」の開発

    2010

    理工学振興会 

    井改知幸

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    Authorship:Principal investigator  Grant type:Competitive

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  31. 多糖の構造特性を活かした蛍光キラリティーセンサーの創製

    2009.4 - 2011.3

    若手研究(B) 

    井改知幸

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  32. Development of Fluorescent Chirality Sensors based on Structural Modification of Polysaccharides

    Grant number:21750120  2009 - 2010

    IKAI Tomoyuki

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4550000 ( Direct Cost: \3500000 、 Indirect Cost:\1050000 )

    The novel cellulose derivatives bearing 1-pyrenebutyl ester at the 6 position of the glucose unit exhibited the excimer fluorescence derived from a dimer formation of pyrenyl units in CHCl3. In addition, it is found that the excimer fluorescence was quenched by the addition of 1,1'-bi-2-naphthol as a guest compound and that the quenching degree was dependent on the chirality.

  33. 多糖のらせん構造を活かしたキラル遷移金属触媒の開発

    2009

    三菱化学研究奨励基金 

    井改知幸

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Industrial property rights 20

  1. 分離剤

    井改知幸、八島栄次

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    Applicant:東海国立大学機構

    Application no:2023-004250  Date applied:2023.1

  2. セルロース誘導体、及びこれを含む金属除去材、並びにこれを用いた金属除去方法

    中谷 晃司, 永松 信二, 前田 勝浩, 長谷川 浩, 井改 知幸, 伊藤 未来也, 宮口 真帆

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    Applicant:株式会社ダイセル, 国立大学法人金沢大学

    Application no:特願2016-226900  Date applied:2016.11

    Announcement no:特開2018-083882  Date announced:2018.5

    Country of applicant:Domestic  

    J-GLOBAL

  3. 多糖類誘導体及びリグニン誘導体の製造方法

    覺知 亮平, 仁宮 一章, 柴田 佳樹, 鵜澤 潔, 生越 友樹, 前田 勝浩, 井改 知幸, 高橋 憲司

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    Applicant:国立大学法人金沢大学, 学校法人金沢工業大学

    Application no:JP2015080036  Date applied:2015.10

    Announcement no:WO2016-068053  Date announced:2016.5

    Country of applicant:Domestic  

    J-GLOBAL

  4. 多糖誘導体、及びその蛍光性キラルセンサーとしての用途

    井改 知幸, 前田 勝浩, 加納 重義, 小島 豊

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    Applicant:国立大学法人金沢大学

    Application no:特願2015-081156  Date applied:2015.4

    Announcement no:特開2016-199692  Date announced:2016.12

    Country of applicant:Domestic  

    J-GLOBAL

  5. 比色検出型キラルセンサー

    前田 勝浩, 加納 重義, 井改 知幸, 山中 健太郎

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    Applicant:国立大学法人金沢大学

    Application no:特願2015-035065  Date applied:2015.2

    Announcement no:特開2016-155781  Date announced:2016.9

    Country of applicant:Domestic  

    J-GLOBAL

  6. 固体状態で不斉選択性の切り替えが可能な光学異性体分離剤

    井改 知幸, 前田 勝浩, 加納 重義, 佐藤 公

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    Applicant:国立大学法人金沢大学

    Application no:特願2015-020345  Date applied:2015.2

    Announcement no:特開2016-140845  Date announced:2016.8

    Country of applicant:Domestic  

    J-GLOBAL

  7. 光学活性ポリ(ジフェニルアセチレン)化合物及びその製造方法、並びにその光学異性体分離剤としての用途

    前田 勝浩, 加納 重義, 井改 知幸, 下村 昴平, 丸田 みゆき

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    Applicant:国立大学法人金沢大学

    Application no:JP2014053001  Date applied:2014.2

    Announcement no:WO2014-126028  Date announced:2014.8

    Patent/Registration no:特許第6083832号  Date registered:2017.2 

    Country of applicant:Domestic  

    J-GLOBAL

  8. 光学活性ポリ(ジフェニルアセチレン)化合物及びその製造方法、並びにその光学異性体分離剤としての用途

    前田 勝浩, 加納 重義, 井改 知幸, 下村 昴平, 丸田 みゆき

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    Applicant:国立大学法人金沢大学

    Application no:特願2015-500220  Date applied:2014.2

    Patent/Registration no:特許第6083832号  Date registered:2017.2 

    Country of applicant:Domestic  

    J-GLOBAL

  9. 新規ポリ(ジフェニルアセチレン)化合物及びその製造方法、並びにその光学異性体分離剤としての用途

    前田 勝浩, 加納 重義, 井改 知幸, 下村 昴平, 小松 優規

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    Applicant:国立大学法人金沢大学

    Application no:特願2015-500087  Date applied:2013.8

    Announcement no:WO2014-125667  Date announced:2014.8

    Patent/Registration no:特許第6086512号  Date registered:2017.2 

    Country of applicant:Domestic  

    J-GLOBAL

  10. 新規ポリ(ジフェニルアセチレン)化合物及びその製造方法、並びにその光学異性体分離剤としての用途

    前田 勝浩, 加納 重義, 井改 知幸, 下村 昴平, 小松 優規

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    Applicant:国立大学法人金沢大学

    Application no:JP2013072712  Date applied:2013.8

    Announcement no:WO2014-125667  Date announced:2014.8

    Country of applicant:Domestic  

    J-GLOBAL

  11. 不斉選択性の切り替えが可能なクロマトグラフィー用充填剤

    前田 勝浩, 井改 知幸, 下村 昂平

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    Applicant:国立大学法人金沢大学

    Application no:JP2013062351  Date applied:2013.4

    Announcement no:WO2013-168601  Date announced:2013.11

    Patent/Registration no:特許第5757602号  Date registered:2015.6 

    Country of applicant:Domestic  

    J-GLOBAL

  12. 光学異性体用分離剤

    岡本 佳男, 山本 智代, 井改 知幸, 上垣外 正己

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    Applicant:国立大学法人名古屋大学, 株式会社ダイセル

    Application no:特願2009-513026  Date applied:2008.5

    Announcement no:WO2008-136512  Date announced:2008.11

    Patent/Registration no:特許第5531288号  Date registered:2014.5 

    Country of applicant:Domestic  

    J-GLOBAL

  13. 光学異性体用分離剤

    岡本佳男、山本智代、井改知幸、上垣外正己

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    Application no:特願2007-122843  Date applied:2007.5

    Country of applicant:Domestic  

  14. 光学異性体分離用充填剤

    岡本 佳男, 山本 智代, 井改 知幸, 上垣外 正己

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    Applicant:国立大学法人名古屋大学, 株式会社ダイセル

    Application no:特願2008-514474  Date applied:2007.5

    Announcement no:WO2007-129659  Date announced:2007.11

    Patent/Registration no:特許第5531287号  Date registered:2014.5 

    Country of applicant:Domestic  

    J-GLOBAL

  15. 光学異性体分離用充填剤

    岡本佳男、山本智代、井改知幸、上垣外正己

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    Application no:PCT: JP 2007-059372  Date applied:2007.5

    Country of applicant:Domestic  

  16. 光学異性体分離用充填剤

    岡本佳男、山本智代、井改知幸、上垣外正己

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    Application no:PCT: JP 2007-059371  Date applied:2007.5

    Country of applicant:Domestic  

  17. 光学異性体分離用充填剤

    岡本佳男、山本智代、井改知幸、上垣外正己

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    Application no:特願2006-130401  Date applied:2006.5

    Country of applicant:Domestic  

  18. 光学異性体分離用充填剤

    岡本佳男、山本智代、井改知幸、上垣外正己

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    Application no:特願2006-130194  Date applied:2006.5

    Country of applicant:Domestic  

  19. 光学異性体分割用ビーズ及びその製造方法

    岡本 佳男, 山本 智代, 井改 知幸, 上垣外 正己

     More details

    Applicant:国立大学法人名古屋大学, 株式会社ダイセル

    Application no:特願2007-528295  Date applied:2006.4

    Announcement no:WO2006-121060  Date announced:2006.11

    Patent/Registration no:特許第5007669号  Date registered:2012.6 

    Country of applicant:Domestic  

    J-GLOBAL

  20. 光学異性体分割用ビーズ及びその製造方法

    岡本佳男、山本智代、上垣外正己、井改知幸

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    Application no:特願2005-135920  Date applied:2005.5

    Country of applicant:Domestic  

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Teaching Experience (On-campus) 28

  1. 化学実験

    2020

  2. 有機・高分子化学基礎論

    2020

  3. 高分子化学セミナー1A

    2020

  4. 高分子化学セミナー1C

    2020

  5. 高分子化学セミナー 1B

    2020

  6. 高分子化学セミナー1D

    2020

  7. 高分子化学特別実験及び演習Ⅰ

    2020

  8. 高分子化学特別実験及び演習II

    2020

  9. 高分子化学セミナー 2A

    2020

  10. 高分子化学セミナー 2B

    2020

  11. 高分子化学セミナー 2C

    2020

  12. 高分子化学セミナー 2D

    2020

  13. 高分子化学セミナー 2E

    2020

  14. 高分子化学セミナー 2A

    2019

  15. 高分子化学特別実験及び演習II

    2019

  16. 高分子化学特別実験及び演習Ⅰ

    2019

  17. 高分子化学セミナー1D

    2019

  18. 高分子化学セミナー 1B

    2019

  19. 高分子化学セミナー1C

    2019

  20. 高分子化学セミナー1A

    2019

  21. 有機・高分子化学基礎論

    2019

  22. 化学生命工学実験2

    2019

  23. 化学生命工学実験4(高分子化学分野)

    2019

  24. 有機化学5

    2019

  25. 高分子化学セミナー 2B

    2019

  26. 高分子化学セミナー 2E

    2019

  27. 高分子化学セミナー 2D

    2019

  28. 高分子化学セミナー 2C

    2019

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Social Contribution 2

  1. 高分子学会行事委員会委員

    Role(s):Organizing member

    2022 - 2024

  2. 煌めくヘリカルラダーポリマー

    Role(s):Contribution

    高分子学会  高分子  2021.9