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联苯二胺,3,3′ 二甲基联苯二胺在二价镍配合物存在下,直接与2,5 二溴噻吩的格氏(Grignard)试剂共聚,用红外光谱、核磁共振等对共聚物进行了表征。该合成方法所得联苯二胺与噻吩共聚物、3,3′ 二甲基联苯二胺与噻吩共聚物的收率分别为63.4%和 70.8%。在 25℃测得的特性粘度分别为 0.75 dL/g 和 0.67 dL/g。聚合物的循环伏安测定表明该类聚合物具有一定的电化学活性,每种聚合物均在 0~0.8 V之间出现两对氧化 还原峰。紫外 可见吸收光谱测试结果表明共聚物分别在415 nm和450 nm处有最大吸收峰。
Biphenyldiamine and 3,3 ’-dimethylbiphenylenediamine were directly copolymerized with 2,5-dibromothiophene Grignard reagent in the presence of divalent nickel complexes. The compounds were characterized by infrared spectroscopy, nuclear magnetic resonance Copolymers were characterized. The yield of biphenyldiamine and thiophene copolymer and 3,3’-dimethylbiphenylenediamine and thiophene copolymer obtained in this synthesis method were 63.4% and 70.8%, respectively. The intrinsic viscosities measured at 25 ° C were 0.75 dL / g and 0.67 dL / g, respectively. Cyclic voltammetry analysis of the polymers showed that these polymers possessed some electrochemical activities, and two pairs of redox peaks appeared between 0 ~ 0.8 V for each polymer. UV-Vis absorption spectra showed that the copolymer had the maximum absorption peak at 415 nm and 450 nm, respectively.