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链增长催化剂转移缩合聚合
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链增长催化剂转移缩合聚合
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理学
链增长催化剂转移缩合聚合
释
chain growth catalyst transfer polycondensation; chain growth catalyst transfer condensation polymerization
链增长催化剂转移缩合聚合
聚合过程中采用特殊的催化剂,催化剂可以不离开聚合物链,聚合反应表现出准“活性”特征,从而使得反应由逐步聚合的特征变为链增长特征,聚合过程变得可控、聚合物产物的分子量分布变窄的聚合反应。主要有熊田(Kumada)偶联反应、根岸(Negishi)偶联反应、铃木(Suzuki)偶联反应。
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