PROTON-CONDUCTING POLYMER MEMBRANE CONTAINING POLYMERS WITH SULFONIC ACID GROUPS THAT ARE COVALENTLY BONDED TO AROMATIC GROUPS, MEMBRANE ELECTRODE UNIT, AND USE THEREOF IN FUEL CELLS

摘要

Proton-conducting polymer membrane containing polymers with sulfonic acid groups that are covalently bonded to aromatic groups, membrane-electrode unit, and use thereof in fuel cells The present invention relates to a proton-conducting polymer membrane comprising polymers with sulfonic acid groups bonded covalently to aromatic groups and polymers comprising phosphonic acid groups, obtainable by polymerizing monomers comprising phosphonic acid groups.