申请人:Nagamura Toshihiko
公开号:US08773745B2
公开(公告)日:2014-07-08
The present invention relates to an electrochromic polymer compound composed of a hyperbranched polymer having electrochromic characteristics derived from a quaternary pyridinium salt, a terephthalic acid diester or a biphenyl-4,4′-diester structure, and a varnish, a thin film structure and an electrochromic device that are obtained by the polymer compound. The electrochromic material has high response speed, high coloring efficiency, and excellent repetition stability and can be used for a long time, and has excellent solubility in various solvents.
本发明涉及一种由季铵吡啶盐、对苯二甲酸二酯或联苯-4,4'-二酯结构衍生出具有电致变色特性的超支化聚合物组成的电致变色聚合物化合物,以及由该聚合物化合物获得的清漆、薄膜结构和电致变色装置。该电致变色材料具有高响应速度、高着色效率和优异的重复稳定性,可以长时间使用,并且在各种溶剂中具有优异的溶解性。