以N,N’-二氯对苯醌二亚胺、2,5-二甲基-N,N’-二氯对苯醌二亚胺与2,5-二溴-3,4-乙撑二氧噻吩为单体,1,3-二(二苯基膦)丙烷二氯化镍(Ⅱ)为催化剂,采用金属配合物催化法合成了聚(N,N’-对苯醌二亚胺-3,4-乙撑二氧噻吩)和聚(2,5-二甲基-N,N’-对苯醌二亚胺-3,4-乙撑二氧噻吩)两种共聚物.通过红外光谱(FT-IR)、核磁共振(1 H-NMR)、凝胶渗透色谱(GPC)、X射线衍射(XRD)、紫外分光光度计(UV-Vis)和循环伏安(CV)等测试对其进行了结构表征及性能测试.结果表明,两种共聚物在CF3COOH(TFA)溶液中的UV-Vis最大吸收波长分别在500 nm和511 nm处;氧化还原峰出现在-0.2 V～0.8 V之间;通过碘掺杂后共聚物的电化学窗口拓宽,电化学活性提高.
参考文献
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