New Thermo-Sensitive Graft Copolymers Based on a Poly(N-isopropylacrylamide) Backbone and Functional Polyoxazoline Grafts with Random and Diblock Structure

被引：27

作者：

Carlos Rueda, Juan ^{[2
]}

Zschoche, Stefan ^{[1
]}

Komber, Hartmut ^{[1
]}

Krahl, Franziska ^{[3
]}

Arndt, Karl-Friedrich ^{[3
]}

Voit, Brigitte ^{[1
]}

机构：

[1] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany

[2] Pontificia Univ Catolica Peru, DAI, Secc Fis, Lab Polimeros, Lima, Peru

[3] Tech Univ Dresden, D-01062 Dresden, Germany

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2010年 / 211卷 / 06期

关键词：

functionalization of polymers; graft copolymer; micelles; self-organization; stimuli-sensitive polymers; CRITICAL SOLUTION TEMPERATURE; RESPONSIVE POLYMERS; BLOCK-COPOLYMERS; DRUG-DELIVERY; POLYMERIZATION; WATER; NANOPARTICLES; MICELLES; ACID); LCST;

D O I：

10.1002/macp.200900437

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

New thermo-sensitive functionalized graft copolymers characterized by a poly(N-isopropylacrylamide) backbone and grafts containing 2-ethyl-2-oxazoline and 2-(2-methoxycarbonyl-ethyl)-2-oxazoline units were synthesized. The conformation transition temperatures of the graft copolymers could be modified by variation of the molar composition in the side chain, by different side chain structure (random distribution of both oxazolines vs. diblock structure) and by hydrolysis of the methylester to the acid form. Graft copolymers with long functional oxazoline side chains allowed the stabilization of aggregates above the phase transition temperature of the backbone until the LCST of the side chain. The temperature window allowing for the formation of stable aggregates was widened with acid functions in the corona.

引用

页码：706 / 716

页数：11

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