2-dibromoethyltrimethylsilane. These monomers were polymerized with difficulty by free radicals to viscous polymers, but gave solid copolymers with styrene. The methyl ester was also a weak monomer in anionic polymerization. This non-reactivity is due to the steric effect of the α-trimethylsilyl group adjacent to the double bond.
以1,2-二
溴乙基三甲基
硅烷为原料,以良好的收率制备了α-三甲基甲
硅烷基
丙烯酸及其甲酯。这些单体很难通过自由基聚合成粘性聚合物,但与
苯乙烯形成固体共聚物。甲酯也是阴离子聚合中的弱单体。这种非反应性是由于与双键相邻的 α-三甲基甲
硅烷基的空间效应。