The Effects of Catalyst on the Hydrolysis and Polymerization of TEOS

,; ,; ,; ,; ,; ,

J. Korean Ceram. Soc. > Volume 27(1); 1990 > Article

Journal of the Korean Ceramic Society 1990;27(1): 86.

Tetra Ethyl Ortho Silicate의 수화 및 중합에 미치는 촉매의 영향

정형진, 이전국, S. Sakka¹

한국과학기술연구원 세라믹스부
¹일본 교토대학교 화학연구소

The Effects of Catalyst on the Hydrolysis and Polymerization of TEOS

ABSTRACT

The shape and characteristics of polymers in hydrolzed and polymerized sol were affected by the types of catalysts. In our research, the contents of water and catalysts were constant and the types of catalyst were varied. In the case of acid catalysts, polymers in sol were linear and spinnable. The shapes of polymer were affected by the types of anions in acid catalysts. In the case of catalyst having anions, F, Cl, in the same period, the effects were similar. But in the case of base catalysts polymers were rigid rod like and not spinnable.