星型聚合物中间体环硅氧烷核的合成研究  

Synthesis and Characterization of Star-Shaped Polymer's Cyclosiloxane Core

作　　者：廖义军[1] 孙争光[1] 李新[1] 黄世强[1] 

机构地区：[1]湖北大学材料科学与工程学院,武汉430062

出　　处：《有机硅材料》2008年第2期59-62,共4页Silicone Material

基　　金：湖北省教育厅基金重点资助项目(D200510008)

摘　　要：以甲基二氯硅烷、四甲基四乙烯基环四硅氧烷(D4Vi)为原料,采用硅氢加成反应合成了星型聚合物的中间体环硅氧烷核,并用红外光谱和核磁共振谱进行了表征。反应的最佳条件是:采用预先活化、反应温度72℃、催化剂与D4Vi的量之比为1.0×10-4,反应转化率可达95%,且选择性很好,产物主要为β-加成产物。The star- shaped polymerg cyclosiloxane core was synthesized by hydrosilylation with dimethyldichlorosilane and 2,4,6,8 - tetravinyl - 2,4,6,8 - tetramethylcyclotetrasiloxane as raw materials, and characterized by infrared spectroscopy and nuclear magnetic resonance spectroscopy. The preferred reaction conditions included pre - activation, temperature of 72 ℃, relative ratio between catalyst and D4^Vi was 1.0 × 10^-4. The reaction conversion reached 95%, with good selectivity where mainlyβ -addition products were obtained.

关 键 词：星型聚合物 甲基二氯硅烷 四甲基四乙烯基环四硅氧烷 硅氢加成 

分 类 号：O627.413[理学—有机化学]