FIELD: chemistry.
SUBSTANCE: invention relates to technology of manufacturing propton-conducting membranes, in particular, membranes for high-temperature fuel elements. Polymer composition for manufacturing proton-conducting membranes consists of mixture of poly[2,2'-(l<-phenylene)-5,5'-bibenzimidazole] and benzimidazole-substituted polybenzazole with molecular mass 100000-200000 and structural formula of elementary link (1) with fraction of total mass from 20% to 60%, or with structural formula of elementary link (2) with fraction of total mass from 20% to 80%.
EFFECT: application of claimed composition allows to obtain proton-conducting membranes with improved complex of properties: higher proton-conductivity and mechanical strength at higher temperatures.
1 dwg, 3 tbl, 6 ex
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Authors
Dates
2009-08-20—Published
2008-01-10—Filed