Poly(N-tert-butyl acrylamide-b-N-acryloylmorpholine) amphiphilic block copolymers via RAFT polymerization:: Synthesis, purification and characterization

被引：33

作者：

de Lambert, Bertrand ^{[1
]}

Charreyre, Marie-Therese ^{[1
]}

Chaix, Carole ^{[1
]}

Pichot, Christian ^{[1
]}

机构：

[1] Ecole Normale Super Lyon, CNRS, UMR Biomerieux, F-69364 Lyon 07, France

来源：

POLYMER | 2007年 / 48卷 / 02期

关键词：

amphiphilic block copolymers; acrylamide derivatives; reversible addition fragmentation chain transfer;

D O I：

10.1016/j.polymer.2006.11.059

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

Amphiphilic block copolymers consisting of two poly(acrylamide) derivative blocks have been synthesized via the reversible addition fragmentation chain transfer (RAFT) polymerization process with a hydrophobic block, poly(N-tert-butyl acrylamide), poly(TBAm), and a non-ionic hydrophilic one. poly(N-acryloylmorpholine), poly(NAM). Both polymerization orders, poly(TBAm-b-NAM) and poly(NAM-b-TBAm), were compared in terms of conversion and control over molecular weights (MW). Purification of the block copolymers was carried out via several methods in order to optimize their subsequent characterization. H-1 NMR analysis resulted in an accurate determination of the second block MW whereas determination of the CMC by the pendant drop method confirmed the ability of the poly(TBAm-b-NAM) block copolymers to self-assemble into micelles in aqueous phase. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：437 / 447

页数：11

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