研究者詳細 - 中西　和樹

論文 - 中西　和樹

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PHASE-SEPARATION IN SILICA SOL-GEL SYSTEM CONTAINING POLYACRYLIC-ACID .1. GEL FORMATION BEHAVIOR AND EFFECT OF SOLVENT COMPOSITION 査読有り

NAKANISHI K, SOGA N

JOURNAL OF NON-CRYSTALLINE SOLIDS 139 巻 ( 1 ) 頁： 1 - 13 1992年1月

PHASE-SEPARATION IN SILICA SOL-GEL SYSTEM CONTAINING POLYACRYLIC-ACID .2. EFFECTS OF MOLECULAR-WEIGHT AND TEMPERATURE 査読有り

NAKANISHI K, SOGA N

JOURNAL OF NON-CRYSTALLINE SOLIDS 139 巻 ( 1 ) 頁： 14 - 24 1992年1月

MACROPORE MORPHOLOGY CONTROL OF SILICA-GEL BY SPINODAL DECOMPOSITION 査読有り

NAKANISHI K, SOGA N

CHEMICAL PROCESSING OF ADVANCED MATERIALS 頁： 29 - 41 1992年

PHASE-SEPARATION IN GELLING SILICA ORGANIC POLYMER-SOLUTION - SYSTEMS CONTAINING POLY(SODIUM STYRENESULFONATE) 査読有り

NAKANISHI K, SOGA N

JOURNAL OF THE AMERICAN CERAMIC SOCIETY 74 巻 ( 10 ) 頁： 2518 - 2530 1991年10月

PORE SURFACE CHARACTERISTICS OF MACROPOROUS SILICA-GELS PREPARED FROM POLYMER-CONTAINING SOLUTION 査読有り

NAKANISHI K, SAGAWA Y, SOGA N

JOURNAL OF NON-CRYSTALLINE SOLIDS 134 巻 ( 1-2 ) 頁： 39 - 46 1991年9月

SMALL-ANGLE X-RAY-SCATTERING STUDY ON SOL-GEL TRANSITION OF MIXTURES OF COLLOIDAL SILICA AND ORGANIC POLYMER 査読有り

MATSUOKA H, CHEN S, ISHII H, ISE N, NAKANISHI K, SOGA N

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 64 巻 ( 4 ) 頁： 1283 - 1288 1991年

EFFECT OF STRESS ON WATER CORROSION OF BORATE GLASS 査読有り

SOGA N, ZHANG ZY, NAKANISHI K, HIRAO K

JOURNAL OF NON-CRYSTALLINE SOLIDS 112 巻 ( 1-3 ) 頁： 377 - 380 1989年10月

CRYSTALLIZATION OF SILICA-GELS CONTAINING SODIUM POLY-4-STYRENE SULFONATE 査読有り

NAKANISHI K, SOGA N

JOURNAL OF NON-CRYSTALLINE SOLIDS 108 巻 ( 2 ) 頁： 157 - 162 1989年3月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Journal of Non-Crystalline Solids

The silica-based inorganic-organic amorphous complex including sodium poly-4-styrene sulfonate (NaPSS) was prepared. The effects of composition and pH of the hydrolysing solution on the gel forming behavior and on the isothermal crystallization were investigated. In the pH range higher than the isoelectric point (IEP) of amorphous SiO2, homogeneous gels were formed and the crystallization temperature decreased rapidly with increasing content of the polymer-metal salt. On the other hand, the solutions prepared under lower pH condition than the IEP formed phase-separated gels, and their crystallization behavior was almost unaffected by the polymer-metal salt concentration. Taking into account the electrostatic interaction between constituent species, the difference in the crystallization behavior is explained. In the former case, as the silica surface carries negative charge, Na ions are uniformly distributed on the interface of silica and partly dissociated NaPSS molecules. Hence, the crystallization can be effectively accelerated by Na ions. In the latter case, hardly dissociated NaPSS molecules are thought to form second phase and a very small amount of Na ions can be associated with the crystallization process of the silica network. © 1989.

DOI： 10.1016/0022-3093(89)90578-4

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THE EFFECT OF TWO-DIMENSIONAL COMPRESSIVE STRESS ON THE DISSOLUTION RATE OF GLASS IN WATER 査読有り

ZHANG Z, NAKANISHI K, HIRAO K, SOGA N

NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU RONBUNSHI-JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 97 巻 ( 3 ) 頁： 365 - 369 1989年