FIELD: chemistry.
SUBSTANCE: claimed invention relates to a method of obtaining modified perfluorinated sulphocationite membranes. Described is the method of obtaining modified perfluorinated sulphocationite membranes by formation of highly molecular proton-conducting additives in their transport channels, characterised by the fact that in a membrane, preliminarily kept in a polar solvent, selected from the series: ethyl alcohol, isopropyl alcohol, dimethylformamide or dimetylsulphoxide, performed is radical polymerisation of styrene in the presence of divinyl benzene as a cross-linking agent and 2,2-azo-bis-isobutironitrile as an initiator, and after performing polymerisation, sulphonation of a cross-linked polystyrene, embedded into a membrane, is carried out.
EFFECT: obtaining modified perfluorinated sulphocationite membranes with improved values of a volume capacity, water sorption and proton conductivity at lower humidity.
2 ex
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