Synthesis of poly(urethane-urea) varnish bearing azobenzene chromophoric pendants

被引：0
|
作者：
Constantin Gaina
Viorica Gaina
Mariana Cristea
机构：
[1] “Petru Poni” Institute of Macromolecular Chemistry,
来源：
Polymer Bulletin | 2012年 / 68卷
关键词：
Poly(urethane-urea); Azobenzene; Photosensitive polymers; Thermal behavior;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new diol with azoaromatic pendant was prepared by N-phenyl-4-amido-3,4-dichloromaleimide with 2-mercaptoethanol in the presence of NaOH, and used to obtain photosensible poly(urethane-urea) varnish. A poly(urethane-urea) varnish bearing azobenzene chromophores, based on a poly(ethylene adipate)diol (average molecular weight—2000), 4,4′-dibenzyldiisocyanate, diethylene glycol, trimethylolpropane, and afore-mentioned diol, were prepared and characterized. The polymers were characterized by FTIR spectroscopy, thermal analysis (DMA, DSC, and TGA), and the photochromic behavior by UV irradiation of thin films was discussed.
引用
收藏
页码：361 / 373
页数：12
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