A simplified electrochemically mediated ATRP synthesis of PEO-b-PMMA copolymers

被引：49

作者：

Chmielarz, Pawel ^{[1
,2
]}

Sobkowiak, Andrzej ^{[1
]}

Matyjaszewski, Krzysztof ^{[2
]}

机构：

[1] Rzeszow Univ Technol, Fac Chem, Dept Phys Chem, PL-35959 Rzeszow, Poland

[2] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA

来源：

POLYMER | 2015年 / 77卷

基金：

美国国家科学基金会;

关键词：

Amphiphilic copolymers; Poly(methyl methacrylate); Simplified electrochemically mediated ATRP; TRANSFER RADICAL POLYMERIZATION; UTILIZING HALIDE EXCHANGE; METHYL-METHACRYLATE; BLOCK-COPOLYMERS; TRIBLOCK COPOLYMERS; VISIBLE-LIGHT; OXIDE)-B-POLY(METHYL METHACRYLATE); FUNCTIONAL MATERIALS; PHOTOINDUCED ATRP; ELECTRON-TRANSFER;

D O I：

10.1016/j.polymer.2015.09.038

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(ethylene oxide)-block-poly(methyl methacrylate) amphiphilic copolymers were prepared via electrochemically mediated atom transfer radical polymerization (eATRP) utilizing only 50 ppm of Cu-II complex, rather than previously reported concentrations of catalyst of ca. 1,000-30,000 ppm. The copolymers were also prepared via a simplified electrochemically mediated ATRP (seATRP) procedure utilizing an aluminum wire sacrificial anode as a counter electrode, which was directly immersed into the reaction flask, without the need of its separation. This seATRP system works under both potentiostatic and galvanostatic conditions. In each case the polymerization results showed similar molecular weight evolution while maintaining a narrow molecular weight distribution throughout the reactions. The successful chain extension and formation of block copolymers confirmed the living nature of the poly(alkyl methacrylates) prepared by eATRP and seATRP. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：266 / 271

页数：6

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