Abstract—

A number of copolymers based on 5(6),5′(6′)-bis(benzimidazole) oxide, 1,7-dihydrodiimidazo[4.5-b:4'.5'-e]pyridine, and 4,4'-difluorobenzophenone are first synthesized. The features of synthesis, molecular weight, and thermal characteristics of the copolymers are studied. Polymers have good film-forming properties; therefore, proton-conducting membranes are obtained on their basis by doping with phosphoric acid. For optimal membrane swelling in phosphoric acid the regime of thermal “crosslinking” of the initial films is found. The proton conductivity of the membranes sufficient for their use in medium-temperature hydrogen-air fuel cells is measured.

中文翻译：

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含N-苯撑苯并咪唑和N-苯撑-二咪唑并吡啶单元的新型聚合物，用于燃料电池质子传导膜

摘要-

基于5（6），5'（6'）-双（苯并咪唑）氧化物，1,7-二氢二咪唑并[4.5- b：4'.5'- e ]吡啶和4,4'-的许多共聚物首先合成二氟二苯甲酮。研究了共聚物的合成，分子量和热特性。聚合物具有良好的成膜性能；因此，质子传导膜是通过掺杂磷酸而获得的。为了使膜在磷酸中达到最佳溶胀，可以找到初始膜的热“交联”状态。测量了足以在中温氢-空气燃料电池中使用的膜的质子传导率。