Faculty Profiles - MASUBUCHI Yuichi

Papers - MASUBUCHI Yuichi

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The shear-flow properties of electro-rheological liquid polymeric blends Reviewed International coauthorship International journal

Riha P, Kimura H, Aikawa K, Masubuchi Y, Takimoto J, Koyama K

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS Vol. 85 ( 2-3 ) page： 249-256 1999.8

Effect of chain structure on the melt rheology of modified polypropylene Reviewed International journal

Sugimoto M, Tanaka T, Masubuchi Y, Takimoto J, Koyama K

JOURNAL OF APPLIED POLYMER SCIENCE Vol. 73 ( 8 ) page： 1493-1500 1999.8

Stress rectification in MR fluids under tilted magnetic field Reviewed International journal

Takimoto J, Takeda H, Masubuchi Y, Koyama K

INTERNATIONAL JOURNAL OF MODERN PHYSICS B Vol. 13 ( 14-16 ) page： 2028-2035 1999.6

Preparation and property of model homogeneous ER fluids having urethane groups Reviewed International journal

Minagawa K, Okamura H, Masuda S, Tanaka M, Gohko N, Masubuchi Y, Takimoto J, Koyama K, Uemura T

INTERNATIONAL JOURNAL OF MODERN PHYSICS B Vol. 13 ( 14-16 ) page： 1998-2004 1999.6

Electrically induced phase inversion in polyurethane/dimethylsiloxane blend Reviewed International journal

Kimura H, Aikawa K, Masubuchi Y, Takimoto J, Koyama K, Uemura T

INTERNATIONAL JOURNAL OF MODERN PHYSICS B Vol. 13 ( 14-16 ) page： 2011-2017 1999.6

Effect of ultrasound frequency on sonochemical luminescence under well-determined sound pressure Reviewed International journal

Yanagida H, Masubuchi Y, Minagawa K, Takimoto J, Koyama K

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS Vol. 38 ( 5B ) page： 3103-3104 1999.5

A reaction kinetics model of water sonolysis in the presence of a spin-trap Reviewed International journal

Yanagida H, Masubuchi Y, Minagawa K, Ogata T, Takimoto J, Koyama K

ULTRASONICS SONOCHEMISTRY Vol. 5 ( 4 ) page： 133-139 1999.1

Simulation Study on Effect of Polymer Entanglement on the Strain Hardening Reviewed International journal

Y. Masubuchi, J. Takimoto and K. Koyama

Molecular Simulation Vol. 21 page： 257-269 1999

Melt strength and extrudate swell of high-melt-strength polypropylene Reviewed International journal

Sugimoto M, Masubuchi Y, Takimoto J, Koyama K

NIHON REOROJI GAKKAISHI Vol. 27 ( 1 ) page： 67-68 1999

A Brownian dynamics study of strain hardening of branching polymer melts Reviewed International journal

Masubuchi Y, Takimoto J, Koyama K

SLOW DYNAMICS IN COMPLEX SYSTEMS Vol. 469 page： 659-660 1999

Strain-hardening property of polystyrene(PS) ultrahigh molecular weight(UHMW)-PS blends Reviewed International journal

Minegishi A, Nishioka A, Takahashi T, Masubuchi Y, Takimoto J, Koyama K

SLOW DYNAMICS IN COMPLEX SYSTEMS Vol. 469 page： 649-650 1999

Electrorheological effect in liquid blends Reviewed International journal

Kimura H, Aikawa K, Masubuchi Y, Takimoto J, Koyama K

SLOW DYNAMICS IN COMPLEX SYSTEMS Vol. 469 page： 152-153 1999

A systematic description by BKZ model of strain hardening or softening in uniaxial elongation of polymer melts Reviewed International journal

Takahashi T, Nishioka A, Masubuchi Y, Takimoto J, Koyama K

JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS Vol. B38 ( 3 ) page： 289-304 1999

Adaptability of K-BKZ Type Constitutive Equations for Uniaxial, Biaxial and Planar Elongational Viscosities of LDPE Melt. Reviewed

NISHIOKA Akihiro, TAKAHASHI Tatsuhiro, MASUBUCHI Yuichi, TAKIMOTO Jun-ichi, KOYAMA Kiyohito

Seikei-Kakou Vol. 11 ( 6 ) page： 517 - 526 1999

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japan Society of Polymer Processing

Measurements of uniaxial, biaxial, and planar elongational viscosity and step stress relaxation of a low density polyethylene (LDPE) melt were carried out. The description of experimental uniaxial, biaxial, and planar elongational viscosities results by the Kaye-Bernstein-Kearsley-Zapas (K-BKZ) constitutive equation was examined. Three types of damping function forms, Wagner-Demarmels (WD) model, Papanastasiou-Scriven-Macosko (PSM) model, and Luo-Tanner (LT) model, have been proposed in the K-BKZ constitutive equation. These three damping function forms were examined to see which was able to describe the experimental shear, biaxial, and planar damping functions. The experimental shear and biaxial damping functions were described by the LT and PSM models better than the WD model, however, the experimental planar damping function was not described well by any of the three models. After estimating the best parameters in each model by fitting the three experimental damping functions, the uniaxial, biaxial, and planar elongational viscosity was calculated by the estimated parameters. The uniaxial elongational viscosity was predicted best by the LT model, then by the WD, and PSM models. For biaxial and planar elongational viscosity, none of the three models predicted well, thus the lack of suitability of the biaxial and planar elongational viscosity to the K-BKZ model was suggested.

DOI： 10.4325/seikeikakou.11.517

Systematic description by BKZ model of strain hardening or softening in uniaxial elongation of polymer melts Reviewed International journal

Takahashi T., Nishioka A., Masubuchi Y., Takimoto J., Koyama K.

Journal of Macromolecular Science - Physics Vol. 38 1999