甲基二氯硅烷缩合反应的研究

Studies on Condensation Reaction of Methyldiphlorosilane

由于聚硅烷具有一些特殊的性质及用途,近年来引起了人们的注意。文献报道的多是主链连有烷基、芳基或芳烷基的聚硅烷,而主链连有活性基团的聚硅烷很少。我们曾合成了主链连有硅氢基团的聚硅烷,并研究了其交联反应。通过硅氢键的反应,可在硅一硅主链上引入一些活性基团,赋予聚硅烷新的特性。本文则报道不同反应条件对甲基二氯硅烷缩合的影响。

The condensation reaction of methyldichlorosilane in mixed solvents with different proportion of toluene and dioxane via various coupling reagents (Na,K,Li or Na/K alloy) were studied in detail. The effect of reaction temperature and time was also suggested. The structure of polysilane obtained from coupling of MeHSiCl2 by Na/K alloy in THF may be chain-cyclic form.