低价钛试剂促进的硅硅键的构造反应:官能化聚硅烷的合成  

Constitution Reaction of Si-Si bond by Low-vlent Titanium Agent: Synthesis of Functional Polysilane

作　　者：陈斌[1] 陈利民[1] 李文清[1] 黄家榜[1] 蒋剑雄[1] 李志芳[1] 

机构地区：[1]杭州师范大学,有机硅化学及材料技术教育部重点实验室,杭州310012

出　　处：《化工生产与技术》2009年第2期13-16,共4页Chemical Production and Technology

摘　　要：利用低价钛试剂是一个良好还原试剂的特性,在温和的条件下促进氯硅烷的还原偶联反应。在TiCl4/Zn还原体系作用下,R3SiCl进行二聚反应,生成相应的二硅烷,二氯硅烷进行缩聚反应,以良好的产率得到聚硅烷。在该反应条件下,底物中的官能团(如Si—H键、乙烯基等)不受影响。所得到的聚硅烷有着较高的平均相对分子质量和较窄的相对分子质量分布。The low -valent titanium agent was a kind of good reductive agent, and the reductive coupling reaction of organochlorosilanes was achieved under this moderate condition. Under the effect of TiCl4/Zn reductive system, R3SiCl was dimerized into corresponding disilanes, and dichlorophenylsilane underwent a reductive polycondensation reaction with good yield of polysilane. Under this condition, the functional groups such as Si—H and ethylene were not influenced. The polysilane obtained had a high average relative molecular mass and a narrow relative molecular mass distribution.

关 键 词：还原聚合反应 聚硅烷 氯硅烷 低价钛 

分 类 号：O634.41[理学—高分子化学]