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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 lithium salt (I) of p- (dimethylhydroxy) silyl-α-phenylstyrene was synthesized. (I) can be used as an alkylene oxide monomer functional anionic polymerization initiator. The polydimethylsiloxane obtained by the polymerization of hexamethylcyclotrisiloxane by means of (I) initiates quantitatively 1,1-diphenylethenyl groups on one end. The terminal reactive polydimethylsiloxanes are useful for the coupling reaction with the living polymer carbon anions.