Hydrolysis Rate Study of Chelated Ti Alkoxide by Using U.V. Spectrophotometer

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J. Korean Ceram. Soc. > Volume 28(12); 1991 > Article

Journal of the Korean Ceramic Society 1991;28(12): 975.

자외선 흡수대를 이용한 Chelated Ti Alkoxide의 수화반응 연구

김선욱, 윤만순, 송인호

산업과학기술연구소(RIST) 무기재료연구분야

Hydrolysis Rate Study of Chelated Ti Alkoxide by Using U.V. Spectrophotometer

ABSTRACT

Chelated titanium alkoxides are hydrolysed showly and stable enough to prepare multicomponent gels of titania without its precipitation due to the fast hydrolysis of Ti alkoxide. The alkoxy groups of chelated titanium alkoxide are hydrolysed as fast as that of titanium alkoxide but the chelating groups are stable even in aqueous solution. The chelating groups showed different rates of hydrolysis in aqueous ammonia solution and water added one. Those rates were monitored with UV-VIS spectrophotometer by using their unique absorption bands before and after hydrolysis.