A single-component photo-responsive fluid based on a gemini surfactant with an azobenzene spacer

被引：59

作者：

Song, Binglei ^{[1
]}

Hu, Yufang ^{[1
]}

Zhao, Jianxi ^{[1
]}

机构：

[1] Fuzhou Univ, Dept Appl Chem, Coll Chem & Chem Engn, Fuzhou 350002, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2009年 / 333卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Gemini surfactant; Photo-responsive fluid; Azobenzene; Single component; AQUEOUS-SOLUTIONS; VISCOSITY; MICELLES; MICROSTRUCTURE; DYNAMICS; LIGHT;

D O I：

10.1016/j.jcis.2009.02.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new gemini surfactant with an azobenzene group incorporated in the spacer has been synthesized In. water, this new Compound forms a photo-responsive fluid, and the properties have been characterized by rheology and freeze-fracture electron microscopy (FF-TEM). UV/Vis irradiation causes a reversible change in zero shear viscosity of about 5 orders of magnitude. The different rheological properties correspond to different aggregation states in solution. A densely entangled network and small discrete micelles are respectively responsible for the high viscosity and the low viscosity state, as revealed by FF-TEM. The simplicity and high photo-efficiency of this single-component system act as a foundation for designing novel stimuli-responsive materials. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：820 / 822

页数：3

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