The catalytic effect of inorganic and organic bases was studied for the hydrolysis of tetraethoxysilane(TEOS). The reaction employed for the precipitation within already cured polydimethylsiloxane networks containing amino groups. These substances were compared with regard to the amount of silica precipitated at room temperature, and the extent of reinforcement was judged by the upturns in the stress-strain isotherms at high elongations. From this point of view, ethylamine was the most effective and all the other compounds have similar effects but less than that.

Amino group을 함유하고 있는 사전-경화된 Polydimethylsiloxane networks에 silica를 filling 시키는 새로운 방법인 in-situ generation 에 관한 연구로, tetraethoxysilane (TEOS)의 가수분해를 시키는데 필요한 무기 및 유기염 촉매 효과에 관하여 검토하였다. 즉, 강온에서 침전된 silica의 양으로 촉매의 효과를 비교하였으며, 강화의 정도는stress-strain isotherms 측정에서 upturns현상을 비교하여 판단하였다 이와같은 환점에서, ethylamine이 가장 효과적이었으며, 기타 다른 화합물은 ethylamine 보다는 덜 효과적이었지만 상당한 효과가 있음이 관찰되었다.

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