Synthesis and characterization of ABC ternary segregated H-shaped copolymers

被引：10
作者：
Xu, Kui
Wang, Yun
Wang, Yanxue
Yu, Tao
An, LiJia
Pan, Caiyuan
Bai, Ruke [1 ]
机构：
[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Hefei 230026, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
来源：
POLYMER | 2006年 / 47卷 / 13期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
ABC ternary copolymer; atom transfer radical polymerization; segregated H-shaped polymer;
D O I：
10.1016/j.polymer.2006.04.064
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The synthesis of a novel ABC ternary segregated H-shaped copolymer is described, of which a central poly(ethylene glycol) (PEG) chain is terminated on both sides by polystyrene (PS) and poly(tert-butylacrylate) (PtBA) chains. The synthetic procedure involves functionalization of PEG by 2-bromosuccinic anhydride followed by esterification of 1,6-hexanediol, which gives its ends the bifunctional nature that allows sequential growth of two PS, then two PtBA arms via atom transfer radical polymerization (ATRP). The resulting segregated H-shaped copolymers were characterization by NMR spectroscopy and gel permeation chromatography (GPC). All these copolymers were affirmed to have well-defined structures and narrow molecular weight distributions. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4480 / 4484
页数：5
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