pH-dependent self-assembly: Micellization and micelle-hollow-sphere transition of cellulose-based copolymers

被引：233

作者：

Dou, HJ

Jiang, M ^{[1
]}

Peng, HS

Chen, DY

Hong, Y

机构：

[1] Fudan Univ, Dept Macromol Sci, Shanghai 200433, Peoples R China

[2] Fudan Univ, Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2003年 / 42卷 / 13期

关键词：

cellulose; micelles; pH dependence; polymerization; self-assembly;

D O I：

10.1002/anie.200250254

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Simply by decreasing the pH of the medium, hydroxyethyl cellulose-graft-polyacrylic acid (HEC-g-PAA) can form micelles in water. Cross-linking the PAA chains at the periphery of the micellar core can efficiently lock the integrality of the micelles (see scheme). The resultant micelles transform into hollow spheres as the pH value increases. Both the micellization and the transition from micelles to hollow spheres are reversible. The hollow spheres show on-off" character at a pH value of about 3."

引用

页码：1516 / 1519

页数：4

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[1] Syntheses and characterisation of graft copolymers of maize starch and methacrylonitrile [J].