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A High‐Efficiency Strategy for Synthesizing Cyclic Polymers of Methacryates in One Pot
Author(s) -
Zhu Xing,
Zhou Nianchen,
Zhu Jian,
Zhang Zhengbiao,
Zhang Wei,
Cheng Zhenping,
Tu Yingfeng,
Zhu Xiulin
Publication year - 2013
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201300220
Subject(s) - polymer , atom transfer radical polymerization , azide , halogen , halide , materials science , polymer chemistry , polymerization , chemistry , combinatorial chemistry , organic chemistry , alkyl
An unprecedented strategy for the high‐efficiency preparation of the cyclic polymers is developed. In this strategy, the atom transfer radical polymerization, the substitution of chain‐end halide by azide group and Cu‐catalyzed alkyne–azide cyclization, i.e., the frequently used three separated steps for the preparation of cyclic polymers, are integrated into a one‐pot reaction by the introduction of a “regulator”. The kernel of this novel strategy is the utilization of the different rates between the competitive ATRP propagation and S N 2 substitution of a tertiary‐carbon halogen and secondary‐carbon halogen. 0.55 g (yield = 59%) cyclic poly(methyl methacrylate) is obtained from 3.0 mL reaction solution. This work proposed a high‐efficiency and bright promising strategy for the preparation of cyclic polymer, which would evoke more research interests on cyclic polymer.