Preparation And Characterization Of New Sulfonated Partially Fluorinated Polyarylenesulfones And Their Blends With Polybenzimidazole

摘要

Perfluorinated ionomers such as Nafion?, invented by Walter Grot, show excellent stabilities in fuel cells and other electrochemical processes such as in membrane chloralkali electrolysis (1-5). Their main disadvantages are: complicated and environmental-unfriendly production process which involves toxic intermediates and waste products, high price, strong decrease of proton conductivity when the water content of the membrane is reduced (6,7),