详细信息

原子转移自由基聚合的研究进展    

The Development of Atom Transfer Radical Polymerization

文献类型:期刊文献

中文题名:原子转移自由基聚合的研究进展

英文题名:The Development of Atom Transfer Radical Polymerization

作者:郭建华[1];韩哲文[1];吴平平[1]

机构:[1]华东理工大学高分子材料系

年份:1998

期号:3

起止页码:30

中文期刊名:高分子通报

外文期刊名:Polymer Bulletin

收录:CSTPCD;;CSCD:【CSCD2011_2012】;

语种:中文

中文关键词:原子转移;自由基聚合;模型聚合物;活性聚合

外文关键词:Atom transfer radical polymerization,“Living” polymerization,Radical polymerization,Model polymers

摘要:综述了原子转移自由基“活性”聚合研究的进展,包括采用的各种引发体系、聚合反应机理、动力学研究以及所合成的各种模型聚合物。通过原子转移自由基聚合可以方便地合成各种结构的模型聚合物,包括窄分布的均聚物、交替、无规和渐变共聚物、特殊链端的聚合物、嵌段和接枝共聚物等。
This review article systemtically summarizes the important advances in atom transfer radical polymerization (ATRP),including various initiating systems,mechanism,kinetic investigation and the model polymers synthesized by this method.Simple organic halides are used as initiators.This new technique empolys redox process with transition metals in which a halogen atom is transferred reversibly between transition metal and polymer chain end.A low stationary concentration of growing radicals is in a fast dynamic equilibrium with the dormant species,so bimolecular termination is minimized.There're two types of ATRP.One is catalyzed by CuX,the other is catalyzed by RuCl2(PPh)3.Generally,ATRP is useful for synthesizing various polymers with molecular weights of 103 to 105 and low dispersites.This technique has been used to polymerize many kinds of vinyl monmers;to prepare random,gradient,alternating,block and graft copolymers;and to synthesize macromolecules with various topologies(branched,hyperbranched and star polymers).

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