PREPARATION METHOD OF IONOMER FOR FUEL CELLS, MEMBRANE-ELECTRODE ASSEMBLY EMPLOYING THE IONOMER PREPARED USING THE SAME METHOD AND FUEL CELLS EMPLOYING THE MEMBRANE-ELECTRODE ASSEMBLY PREPARED USING THE SAME METHOD

摘要

An ionomer is provided to ensure high constant resistance of a membrane electrode assembly and to improve mechanical stability of an electrode structure by applying it to a solid alkaline fuel cell. A manufacturing method of ionomer comprises (i) a step for performing the chloromethylation of hydrocarbon-based polymer; and (ii) a step for performing the amination of a chloromethylated polymer; and (iii) a step for, after washing, drying an aminized polymer with distilled water and treating it with a hydrogen peroxide and alkaline solution.