Stimuli-responsive 4-acryloylmorpholine/4-acryloylpiperidine copolymers via nitroxide mediated polymerization

被引：7

作者：

Savelyeva, Xeniya ^{[1
]}

Metafiot, Adrien ^{[1
]}

Li, Lucia ^{[1
]}

Bennett, Ian ^{[1
]}

Maric, Milan ^{[1
]}

机构：

[1] McGill Univ, Ctr Rech Polymeres & Composites Quebec CREPEQ, McGill Inst Adv Mat MIAM, Dept Chem Engn,CSACS, 3610 Univ St, Montreal, PQ H3A 0C5, Canada

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2017年 / 55卷 / 13期

基金：

加拿大自然科学与工程研究理事会;

关键词：

copolymerization; nitroxide mediated polymerization; poly(acrylamides); stimuli-responsive polymers; water-soluble polymers; FREE-RADICAL POLYMERIZATION; N-BUTYL ACRYLATE; FRAGMENTATION CHAIN TRANSFER; BLOCK-COPOLYMERS; METHYL-METHACRYLATE; AQUEOUS-SOLUTION; RAFT POLYMERIZATION; REACTIVITY RATIOS; ALKOXYAMINE; BEHAVIOR;

D O I：

10.1002/pola.28591

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

4-acryloylmorpholine/4-acryloylpiperidine statistical copolymers were synthesized by nitroxide mediated polymerization (NMP) with BlocBuilder unimolecular initiator in dimethylformamide solution at 120 degrees C. The copolymers had narrow molecular weight distributions (dispersity D=1.25-1.35, number average molecular weights M-n=8.5-13.7 kg mol(-1)). The copolymer microstructure was essentially statistical (reactivity ratios r(4AP)=0.81 +/- 0.73, r(4AM)=0.73 +/- 0.68 based on non-linear fitting of the Mayo-Lewis equation). Cloud point temperatures (CPT) in aqueous media were tuned from 11 degrees C to 92 degrees C, merely by adjusting the initial monomer composition. Using NMP permitted sharper control of the CPT transitions, compared to the similar copolymer made using conventional radical polymerization. (c) 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 2160-2170

引用

页码：2160 / 2170

页数：11

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