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学科主题: 高分子化学
题名: Well-defined amphiphilic polymethylene-b-poly(acrylic acid) diblock copolymers: New synthetic strategy and their self-assembly
其他题名: 结构可控的两亲性聚亚甲基-b-聚丙烯酸两嵌段共聚物:合成新策略及其自组装
作者: Lv HC(吕会朝) ; Xue Y(薛扬) ; Zhao QL(赵巧玲) ; Huang J(黄晋) ; Xu SG(徐慎刚) ; Cao SK(曹少魁) ; Ma Z(马志)
通讯作者: 马志
刊名: J. Polym. Sci. Pol. Chem.
发表日期: 2012
卷: 50, 期:17, 页:3641-3647
收录类别: SCI
部门归属: 中科院上海有机化学研究所; 郑州大学
英文摘要: Well-defined amphiphilic polymethylene-b-poly (acrylicacid) diblock copolymers have been synthesized via a new strategy combining polyhomologation and atom transfer radical polymerization (ATRP). Hydroxyl-terminated polymethylenes (PM-OH) with different molecular weights and narrow molecular weight distribution are obtained through the polyhomologation of dimethylsulfoxonium methylides following quantitative oxidation via trimethylamine-N-oxide dihydrate. Subsequently, polymethylene-based macroinitiators (PM-MIs Mn = 1,300 g mol-1 [Mw/Mn = 1.11] and Mn = 3,300 g mol-1 [Mw/Mn = 1.04]) are synthesized by transformation of terminal hydroxyl group of PM-OH to a-haloester in similar to 100% conversion. ATRPs of tert-butyl acrylate (t-BuA) are then carried out using PM-MIs as initiator to construct PM-b-P(t-BuA) diblock copolymers with controllable molecular weight (Mn = 8,80015,800 g mol-1 Mw/Mn = 1.041.09) and different weight ratio of PM/P(t-BuA) segment (1:1.71:11.2). The amphiphilic PM-b-PAA diblock copolymers are finally prepared by hydrolysis of PM-b-P(t-BuA) copolymers and their self-assembly behavior in water is preliminarily investigated via the determination of critical micelle concentrations, dynamic light scattering, and transmission electron microscope (TEM). (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000306962100021
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/28437
Appears in Collections:高分子材料研究室_期刊论文

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Recommended Citation:
Lv HC,Xue Y,Zhao QL,et al. Well-defined amphiphilic polymethylene-b-poly(acrylic acid) diblock copolymers: New synthetic strategy and their self-assembly[J]. J. Polym. Sci. Pol. Chem.,2012,50(17):3641-3647.
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