Thermochromic Ion-Exchange Micelles Containing H+ Chromoionophores

被引：11

作者：

Du, Xinfeng ^{[1
]}

Zhu, Changyou ^{[1
]}

Xie, Xiaojiang ^{[1
]}

机构：

[1] Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China

来源：

LANGMUIR | 2017年 / 33卷 / 23期

关键词：

POLYMER GEL NETWORKS; TRIBLOCK COPOLYMERS; PLURONIC F127; 1ST EXAMPLE; TEMPERATURE; BEHAVIOR; TRANSITION; NANOSPHERES; DYES; RED;

D O I：

10.1021/acs.langmuir.7b01221

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Thermochromic composites constitute a classical subfamily of stimuli responsive materials. We report here the thermochromic effect in Pluronic F-127 (F127) micelles containing hydrophobic ion-exchanger and H+ chromoionophores. The highly versatile and reversible thermochromism is attributed to the temperature-induced hydration dehydration of the peripheral layer of the micelles, which in turn controls the ion-exchange process between the core and the periphery of the micelles. The color typically changes abruptly within 35 degrees C, and the color transition temperature can be tuned within 5-25 degrees C upon varying the F127 concentrations. This work lays the foundation of a new variety of thermochromic materials involving ion-exchange.

引用

页码：5910 / 5914

页数：5

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