Synthesis and properties of waterborne polyurethane containing spiropyran groups

被引：27
作者：
Bao, Li-hong [1 ,2 ]
Sun, Jia-xun [1 ]
Li, Qing [1 ,2 ]
机构：
[1] Beijing Inst Fash Technol, Sch Mat Sci & Engn, Beijing 100029, Peoples R China
[2] Beijing Key Lab Clothing Mat R&D & Assessment, Beijing 100029, Peoples R China
来源：
JOURNAL OF POLYMER RESEARCH | 2014年 / 21卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Spiropyran; Waterborne polyurethane; Photochromic properties; PHOTOCHROMIC BEHAVIOR; COPOLYMER; COLOR; FILMS;
D O I：
10.1007/s10965-014-0575-4
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Waterborne polyurethane containing spiropyran groups(SPU) has been prepared by polycondensation of isophorone diisocyanate (IPDI), polytetrahydrofuran glycol (PTMG), dimethylol propionic acid (DMPA), 1,4-butanediol (BD), trimethylolpropane (TMP) and 1-(2-Hydroxyethyl)-3,3-dimethylindolino-6'-nitrobenzopyrylospiran(SP). Fourier transform infrared spectroscopy (FT-IR), Thermogravimetric analysis (TG), Scanning electron microscope (SEM) were utilized to characterize SPU films for their chemical structure, thermal stability, microscopic structure. The kinetics of photochromic behavior of SPU dispersion and film has also been investigated. The dispersion and film showed a very good photochromic effect. The decoloration rate of the SPU dispersion and film follow the kinetic of a first order reaction. The fatigue resistance of SPU film is better than that of its dispersion.
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页数：7
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