Synthesis of poly(ethylene oxide)-block-poly(methyl methacrylate)-block-poly styrene triblock copolymers by two-step atom transfer radical polymerization

被引：43
作者：
Sun, XY
Zhang, HL [1 ]
Huang, XH
Wang, XY
Zhou, QF
机构：
[1] Xiangtan Univ, Inst Polymer Sci, Xiangtan 411105, Peoples R China
[2] Xiangtan Univ, Minist Educ, Key Lab Adv Mat & Rheol Properties, Minist Educ, Xiangtan 411105, Peoples R China
[3] Peking Univ, Coll Chem & Mol Engn, Dept Polymer Sci & Engn, Beijing 100871, Peoples R China
来源：
POLYMER | 2005年 / 46卷 / 14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：
atom transfer radical polymerization; block copolymer; poly(ethylene oxide);
D O I：
10.1016/j.polymer.2005.04.058
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 ABC triblock copolymer poly(ethylene oxide)-block-poly(methyl methacrylate) -block-polystyrene (PEO-b-PMMA-b-PS) via atom transfer radical polymerization (ATRP) is reported. First, a PEO-Br macroinitiator was synthesized by esterification of PEO with 2-bromoisobutyryl bromide, which was subsequently used in the preparation of halo-terminated poly(ethylene oxide)-block-poly(methyl methacrylate) (PEO-b-PMMA) diblock copolymers under ATRP conditions. Then PEO-b-PMMA-b-PS triblock copolymer was synthesized by ATRP of styrene using PEO-b-PMMA as a macroinitiator. The Structures and molecular characteristics of the PEO-b-PMMA-b-PS triblock copolymers were studied by FT-IR, GPC and H-1 NMR. (c) 2005 Elsevier Ltd. All rights reserved.
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页码：5251 / 5257
页数：7
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