POLYMER COMPOSITION FOR PROTON-CONDUCTING MEMBRANE AND METHOD OF ITS PRODUCTION Russian patent published in 2008 - IPC H01M2/16 H01M8/10 

FIELD: chemistry.

SUBSTANCE: invention refers to production of proton-conducting membranes based on ionogenic hydrophilic copolymers applied in membrane fuel elements. According to invention polymer composition for proton-conducting membranes designed as interpenetrating polymer networks composed of N-vynilpyrrolidone ionogenic copolymer network, acrylonitrile, 2-acrylamide-2-methyl-1-propanesulphacid and cross-linking monomer (ethyleneglycoldimethacrylate or methylenebisacrylamide) at mass monomers relation (34.5-46.5):(34.5-46.5):(16.5-20.0):(0.5-2.0) and N-vynilpyrrolidone ionogenic copolymer network, acrylonitrile and ethyleneglycoldimethacrylate at mass monomers relation (19.5-79.5):(19.5-79.5):(1.0-2.0). Mass copolymer relation is within the range 1.3-6.76. Polymer composition production includes sequential stages: synthesis of cross-linked ionogenic copolymer by means of radical copolymerization of specified monomers in divided closed polymer mold; saturation of crossed-linked ionogenic copolymer with monomers forming non-ionogenic copolymer network, radical copolymerization of monomers and formation of interpenetrating polymer networks.

EFFECT: production of polymer material for membranes high-conductivity and mechanical strength.

12 cl, 2 tbl, 16 ex