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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(1H-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。
N, N’-dichloro p-benzoquinone diimine, 2,5-dimethyl-N, N’-dichloro p-benzoquinone diimine and 2,5-dibromo-3,4- (N, N’-p-benzoquinonediimine) was synthesized by metal complex catalysis using dioxythiophene as monomer and 1,3-bis (diphenylphosphino) propane nickel dichloride as catalyst -3,4-ethylenedioxythiophene) and poly (2,5-dimethyl-N, N’-p-benzoquinonediimine-3,4-ethylenedioxythiophene). The structures of the compounds were characterized by FT-IR, 1H-NMR, GPC, XRD, UV-Vis and cyclic voltammetry Its structural characterization and performance testing. The results showed that the maximum absorption wavelength of UV-Vis of the two copolymers in CF3COOH (TFA) solution was at 500 nm and 511 nm respectively, the redox peaks appeared between -0.2 V and 0.8 V, The electrochemical window widens and the electrochemical activity increases.