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学科主题: 高分子化学
题名: Convenient Synthesis of Thermo-Responsive PtBA-g-PPEGMEMA Well-Defined Amphiphilic Graft Copolymer Without Polymeric Functional Group Transformation
其他题名: 无聚合物官能团转变的热敏性结构规整的PtBA-g-PPEGMEMA两亲性接枝共聚物的便捷合成
作者: Song XM(宋学梅) ; Zhang YQ(张亚琴) ; Yang D(杨东) ; Yuan L(袁丽) ; Hu JH(胡建华) ; Lu GL(陆国林) ; Huang XY(黄晓宇)
通讯作者: 胡建华 ; 黄晓宇
刊名: J. Polym. Sci. Pol. Chem.
发表日期: 2011
卷: 49, 期:15, 页:3328-3337
收录类别: SCI
部门归属: 中科院上海有机化学研究所; 复旦大学
英文摘要: A series of well-defined amphiphilic graft copolymers bearing hydrophobic poly(tert-butyl acrylate) backbone and hydrophilic poly[poly(ethylene glycol) methyl ether methacrylate)] (PPEGMEMA) side chains were synthesized by sequential reversible addition fragmentation chain transfer (RAFT) polymerization and single-electron-transfer living radical polymerization (SET-LRP) without any polymeric functional group transformation. A new Br-containing acrylate monomer, tert-butyl 2-((2-bromoisobutanoyloxy)methyl)acrylate (tBBIBMA), was first prepared, which can be homopolymerized by RAFT to give a well-defined PtBBIBMA homopolymer with a narrow molecular weight distribution (M(w)/M(n) 1.15). This homopolymer with pendant Br initiation group in every repeating unit initiated SET-LRP of PEGMEMA at 45 degrees C using CuBr/dHbpy as catalytic system to afford well-defined PtBBIBMA-g-PPEGMEMA graft copolymers via the grafting-from strategy. The self-assembly behavior of the obtained graft copolymers in aqueous media was investigated by fluorescence spectroscopy and TEM. These copolymers were found to be stimuli-responsive to both temperature and ions. Finally, poly(acrylic acid)-g-PPEGMEMA double hydrophilic graft copolymers were obtained by selective acidic hydrolysis of hydrophobic PtBA backbone while PPEGMEMA side chains kept inert. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 3328-3337, 2011
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000293279500010
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/24445
Appears in Collections:高分子材料研究室_期刊论文

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Recommended Citation:
Song XM,Zhang YQ,Yang D,et al. Convenient Synthesis of Thermo-Responsive PtBA-g-PPEGMEMA Well-Defined Amphiphilic Graft Copolymer Without Polymeric Functional Group Transformation[J]. J. Polym. Sci. Pol. Chem.,2011,49(15):3328-3337.
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