用甲基氯硅烷混合单体合成聚碳硅烷

Synthesis of Polycarbosilane and Soluble Polysilane from Mixture of Methylchlorcsilanes

本文对用未经分馏的甲基氯硅烷混合单体作原料合成聚碳硅烷进行了研究。由混合单体合成聚硅烷时可得到一种可溶于二甲苯的聚硅烷。该可溶性聚硅烷经高温裂解或高温蒸馏后均可制得聚碳硅烷。本文还研究了可溶性聚硅烷及聚碳硅烷的结构和性能以及它们作为碳化硅陶瓷先躯体的应用。

Solube polysilane was synthesized from the undistilled methylchlorosilane mixture monomer, which can be dissolved in xylene, converted into polycarbosilane either by pyrolysis or distillation. The polycarbosilane can be used as precursor of silicon carbide.The structure and properties of the soluble polysilane and polyearbosilane were also studied.