New route to smart core-shell polymeric microgels: Synthesis and properties

被引：64

作者：

Leung, MF

Zhu, JM

Harris, FW

Li, P

机构：

[1] Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Kowloon, Hong Kong, Peoples R China

[2] Univ Akron, Maurice Morton Inst Polymer Sci, Akron, OH 44325 USA

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2004年 / 25卷 / 21期

关键词：

core-shell polymers; graft copolymers; microgels; pH-sensitive; thermal properties;

D O I：

10.1002/marc.200400362

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new method has been developed to prepare smart polymeric microgels that consist of well-defined temperature-sensitive cores with pH-sensitive shells. The microgels were obtained directly from aqueous graft copolymerizations of N-isopropylacrylamide and N,N-methylenebisacrylamide from water-soluble polymers containing amino groups such as poly(ethyleneimine) and chitosan. The gel diameters ranged from 300 to 400 nm. The unique core-shell nanostructures, which had narrow size distributions, exhibited tuneable responses to pH and temperature.

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收藏

页码：1819 / 1823

页数：5

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