Thermoresponsive PPEGMEA-g-PPEGEEMA Well-Defined Double Hydrophilic Graft Copolymer Synthesized by Successive SET-LRP and ATRP

被引：46
作者：
Zhai, Sujuan [3 ,4 ]
Wang, Beidi [1 ,2 ]
Feng, Chun [3 ,4 ]
Li, Yongjun [3 ,4 ]
Yang, Dong [1 ,2 ]
Hu, Jianhua [1 ,2 ]
Lu, Guolin [3 ,4 ]
Huang, Xiaoyu [3 ,4 ]
机构：
[1] Fudan Univ, Minist Educ, Key Lab Mol Engn Polymers, Adv Mat Lab, Shanghai 200433, Peoples R China
[2] Fudan Univ, Dept Macromol Sci, Shanghai 200433, Peoples R China
[3] Chinese Acad Sci, Key Lab Organofluorine Chem, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R China
[4] Chinese Acad Sci, Lab Polymer Mat, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R China
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2010年 / 48卷 / 03期
基金：
中国国家自然科学基金;
关键词：
atom transfer radical polymerization (ATRP); double hydrophilic; graft copolymers; single electron transfer-living radical polymerization (SET-LRP); stimuli-responsive; LIVING RADICAL POLYMERIZATION; RESPONSIVE MOLECULAR BRUSHES; POLY(ETHYLENE GLYCOL); METHYL ACRYLATE; VINYL-CHLORIDE; SIDE-CHAINS; HOFMEISTER SERIES; TEMPERATURE; 25-DEGREES-C; PH;
D O I：
10.1002/pola.23815
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A series of well-defined double hydrophilic graft copolymers containing poly[poly(ethylene glycol) methyl ether acrylatel (PPEGMEA) backbone and poly[poly(ethylene glycol) ethyl ether methacrylatel (PPEGEEMA) side chains were synthesized by the combination of single electron transfer-living radical polymerization (SET-LRP) and atom transfer radical polymerization (ATRP). The backbone was first prepared by SET-LRP of poly(ethylene glycol) methyl ether acrylate macromonomer using CuBr/tris(2-(dimethylamino)ethyl)amine as catalytic system. The obtained comb copolymer was treated with lithium diisopropylamide and 2-bromoisobutyryl bromide to give PPEGMEA-Br macroinitiator. Finally, PPEGMEA-g-PPEGEEMA graft copolymers were synthesized by ATRP of poly(ethylene glycol) ethyl ether methacrylate macromonomer using PPEGMEA-Br macroinitiator via the grafting-from route. The molecular weights of both the backbone and the side chains were controllable and the molecular weight distributions kept narrow (M-w/M-n <= 1.20). This kind of double hydrophilic copolymer was found to be stimuli-responsive to both temperature and ion (0.3 M Cl- and SO42-). (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 647-655, 2010
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页码：647 / 655
页数：9
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