Abstract Six novel electrochromic (EC) polymers containing triphenylamine units and benzo[c][1,2,5]thiadiazole (BTD) units, coded as TPABTA, TPABTD, TPABTD-a, TPABTD-b, TPABTD-c and TPABTD-d, were successfully synthesized through polymer condensation reaction and their electrochromic properties were characterized in detail. The films of these polymers exhibited reversible color changes, high optical transparency, good solubility in many organic solvents and good coloration efficiency. Among them, the TPABTD-b film showed a set of reasonable electrochromic features, including high coloration efficiency (270 cm2·C-1), appropriate transmittance change (23 % at 849 nm) and a relatively longer response time in bleaching process (tb = 3.7 s).

中文翻译：

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基于含有三苯胺单元和苯并[c][1,2,5]噻二唑单元的新型聚合物的电致变色材料

摘要 六种含有三苯胺单元和苯并[c][1,2,5]噻二唑 (BTD) 单元的新型电致变色 (EC) 聚合物，编码为 TPABTA、TPABTD、TPABTD-a、TPABTD-b、TPABTD-c 和 TPABTD-d ，通过聚合物缩合反应成功合成，并对其电致变色性能进行了详细表征。这些聚合物的薄膜表现出可逆的颜色变化、高光学透明度、在许多有机溶剂中的良好溶解性和良好的着色效率。其中，TPABTD-b薄膜表现出一系列合理的电致变色特性，包括高着色效率（270 cm2·C-1）、适当的透光率变化（849 nm处为23 %）以及在漂白过程中相对较长的响应时间（tb = 3.7 秒）。