摘要
合成了p-(二甲基、羟基)甲硅烷基-α-苯基苯乙烯的锂盐(Ⅰ)。(Ⅰ)可作为环氧烷类单体的官能性阴离子聚合的引发剂。用(Ⅰ)引发六甲基环三硅氧烷聚合得到的聚二甲基硅氧烷的一端基上定量地带有1,1-二苯基乙烯基反应基。该端基反应性聚二甲基硅氧烷可用于与活性聚合物碳阴离子的偶联反应。
The salt (Ⅰ) of p-(dimethyl, hydroxyl) silyl-α-phenyl styrene has been prepared. It can be used as a new kind of functional initiator for anionic polymerization of cyclosiloxane monomers. The polydimethylsiloxane prepared by initiating hexamethylcyclotrisiloxane with (Ⅰ) carries quantitatively a reactive group-l, l-diphenyl vinyl at one end of it. The reactive polydimethylsiloxane can be used to coupling reaction with carbanion of living polymer.
关键词
聚合
官能性
端基反应性
高聚物
anionic polymerization
coupling reaction
functional initiator
reactive polymer
hexamethylcyclotrisiloxane
