摘要
本文介绍了实现自由基活性聚合的动力学、热力学条件及可能的途径。在这些条件下自由基保持稳定的低浓度,增长链自由基与休眠种处于动力学平衡动态,可有效地控制聚合反应,使聚合反应具有聚合物分子量随反应时间、单体转化率成线性增长关系及所得聚合物分子量分布较窄的特征,并且在加入第二单体时可继续生成嵌段共聚物。
The paper is concerned with the possibility and realizing approaches of living radical polymerization.It is required that growing radicals are in a dynamic equilibrium with the dormant species and a low stationary concentration.In these system the polymerizations have some nature of living polymerization,such as the linear increase of molecular weight with time and conversion and the formation of polymers with narrow molecular weight distribution and block copolymer.
出处
《高分子通报》
CAS
CSCD
1996年第3期166-173,共8页
Polymer Bulletin
关键词
自由基
活性聚合
分子量分布
嵌段共聚物
Radical,Living polymerization,Molecular weight distribution,Block copolymer