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介绍了环氧化物阳离子开环聚合的机理,主要包括活性链端机理和活性单体机理等。活性链端机理认为聚合的活性中心位于聚合增长链的链端,聚合单体与活性链端接触发生聚合反应实现链增长;活性单体机理认为聚合的活性中心位于单体分子,在活性单体向聚合链端羟基增加的过程中实现链增长。两者相结合可较成功地解释环氧化物开环聚合的实验现象。
The mechanism of ring-opening polymerization of epoxides was introduced, including the active end-chain mechanism and the active monomer mechanism. Active chain end mechanism that the polymerization center of activity is located in the chain of polymerization chain, the polymerization monomer and the active chain end polymerization reaction to achieve chain growth; active monomer mechanism that the polymerization activity center is located in the monomer molecule, the active monomer Chain growth is achieved as the terminal hydroxyl groups in the polymer chain increase. The combination of the two can more successfully explain the experimental phenomenon of ring-opening polymerization of epoxides.