Perfluorocarbon-sulfonic acid ionome

Perfluorocarbon-sulfonic acid ionomer Perfluoro-sulfonylfluoride ethyl-propyl-vinyl ether Photovoltaic Solid oxide fuel cell Solid polymer electrolyte Thermal energy Tetrafluorethylene... 

Ionomer membranes based on perfluorocarbon polymers became available In the late 196O s. These materials have excellent chemical resistance, thermal stability, mechanical strength and strong acid strength, A number of functionalities have been studied. Including carboxylate, sulfonate and sulfonamide, but only the first two are available as commercial materials. Ferfluorlnated lonomers have been evaluated as membranes In a variety of applications, such as water electrolysis, fuel cells, air driers, Donnan dialysis In waste metal recovery, and acid catalysts, but the primary interest in these materials is for the permselective membrane In electrochemical processes such as In the production of chlorine and caustic (58). 

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