Borane-Catalyzed Si–H Activation Routes to Polysilanes Containing Thiolato Side Chains
作者:Peter T. K. Lee、Miranda K. Skjel、Lisa Rosenberg
DOI:10.1021/om301246z
日期:2013.3.25
Dehydrocoupling and hydrosilation reactions of the Si–Hbonds in poly(phenylsilane) catalyzed by B(C6F5)3 allow the preparation of new polymers containing both Si–H and Si–SR side chains. This postpolymerization modification takes place without any observable competing Si–Si bond cleavage, unlike other Lewis acid, transition-metal, or radical mediated routes. The −SR-functionalized polymers have been
B(C 6 F 5)3催化的聚(苯基硅烷)中Si-H键的脱氢偶联和硅氢化反应可制备含有Si-H和Si-SR侧链的新聚合物。与其他路易斯酸,过渡金属或自由基介导的途径不同,这种后聚合修饰的发生没有任何可观察到的竞争性Si-Si键断裂。通过GPC,IR,UV-vis,元素分析和1 H,13 C和29 Si NMR表征了−SR官能化的聚合物。