TY JOUR TI TYPES OF POLYMERS FOR FUEL CELL MEMBRANES KW fuel cells KW solid polymer electrolytes KW polymers KW copolymers KW protogenic groups JO Modern Technologies and Scientific and Technological Progress AU Sazonov, A.O. AU Fomina, L.V. PY 2024 IS 2024 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»