FLUORO-COPOLYMER ELECTROLYTE MEMBRANES GRAFTED WITH HYDROPHILIC AND SULFONATING GROUPS

摘要

A hydrogen ion conductive branched polymer electrolyte membrane is provided to enhance hydrogen ion conductivity and mechanical strength and to lower cost by reducing the preparation step. A hydrogen ion conductive branched polymer electrolyte membrane is prepared by grafting a hydrophilic monomer comprising polyoxyethylene methacrylate, polyoxyethylene acrylate, poly(ethylene glycol) methyl ether methacrylate, hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxy methacrylamide, hydrolyzed t-butyl methacrylate, hydrolyzed t-butyl acrylate, acrylamide, N-vinyl pyrrolidone, aminostyrene or their mixture, and a monomer having a sulfonated group to a fluorine-based polymer, in turn.