Synthesis of stars and starlike block copolymers from a trialkoxyamine used as initiator

被引:36
作者
Robin, S
Guerret, O
Couturier, JL
Gnanou, Y
机构
[1] Univ Bordeaux 1, ENSCPB, CNRS, Lab Chim Polymeres Organ, F-33402 Talence, France
[2] ATOFINA, Ctr Rech Rhone Alpes, F-69310 Pierre Benite, France
关键词
D O I
10.1021/ma011261b
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
This study investigates the efficiency of a novel trifunctional alkoxyamine (1) based on N-tert-butyl-1-diethylphosphono-2,2-dimethylpropyl nitroxide (SG1) (2) as initiator for the controlled radical polymerization of styrene (S) and n-butyl acrylate (nBuA). Three factors, namely the concentration of SG1 initially introduced in excess, the monomer conversion, and-in the specific case of PS samples the monomer autopolymerization, were found to control the quality of the star samples obtained. Well-defined T-(PBuA-b-PS)(3) star block copolymers could also be synthesized by sequential copolymerization using the same trifunctional initiator.
引用
收藏
页码:2481 / 2486
页数:6
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