Photoreversible Polymer-Surfactant Micelles Using the Molecular Recognition of α-Cyclodextrin

被引：11

作者：

Dong, Zhen-Qiang ^{[1
]}

Cao, Ya ^{[1
]}

Han, Xiao-Juan ^{[1
]}

Fan, Min-Min ^{[1
]}

Yuan, Qi-Juan ^{[1
]}

Wang, Yi-Fu ^{[1
]}

Li, Bang-Jing ^{[2
]}

Zhang, Sheng ^{[1
]}

机构：

[1] Sichuan Univ, Polymer Res Inst, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China

[2] Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China

来源：

LANGMUIR | 2013年 / 29卷 / 10期

基金：

中国国家自然科学基金;

关键词：

TRANSITION; COMPLEXES; SYSTEM; LIGHT; FLUORESCENCE; AZOBENZENE; GEMINI; CHAINS; PH;

D O I：

10.1021/la304101e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photoreversible micelles were achieved by a combination of commercially available components sodium alginate (Alg), tetradecyltrimethylammonium bromide (TTAB), alpha-cyclodextrin (alpha-CD), and 4-(phenylazo)benzoic acid (PBA). Under visible light irradiation, alpha-CD interacted more favorably with PBA than with alkyl chains of TTAB. Therefore, polymer-surfactant micelles were formed by the self-assembly of Alg and TTAB through electrostatic attraction. After UV irradiation, micelles were disrupted because PBA in the cis form lost its ability to complex with alpha-CD, and then the latter was interacted with TTAB to prevent the association of alkyl chains of TTAB. On alternating irradiation of this quaternary system with UV and visible light, this reversible micellization process can be recycled many times.

引用

页码：3188 / 3194

页数：7

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