Synthesis, Self-Assembly and Photoresponsive Behavior of Liquid Crystals Based on Azobenzene

被引：0
|
作者：
Wu, Yaming [1 ]
Liu, Yuhai [2 ]
Chen, Jianxiang [2 ]
Yang, Runmiao [2 ]
机构：
[1] Nanjing Polytech Inst, Sch Life & Hlth, Nanjing 210048, Peoples R China
[2] Jiangsu Univ Technol, Sch Mat Engn, Changzhou 213001, Jiangsu, Peoples R China
来源：
CRYSTALS | 2021年 / 11卷 / 12期
关键词：
smart surfactant; liquid crystals; hydrogel; azobenzene; photo-responsive; PHOTO; HYDROGELS;
D O I：
10.3390/cryst11121560
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
A new amphiphilic surfactant (C4-Azo-C5-HDA) was formed by liquid crystals (LCs) based on azobenzene, whose structures were characterized by H-1-NMR spectroscopy. The reversible hydrogelation upon changes in temperature and light exposure was also studied. Under the irradiation of UV light, the trans-isomer of C4-Azo-C5-HDA rapidly photoisomerized to the cis-isomer, resulting in rapid disruption of the gel. The thermotropic liquid crystal behavior of the gelator was investigated via Differential Scanning Calorimetry (DSC) and Polarizing Optical Microscopy (POM). The biocompatibility experiment of multi-stimulus response of the liquid crystal provides a potential driving force for the development of biomaterials.
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页数：10
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