Fluorine-Substituent-Containing Sulfonated Poly(arylene ether) Membranes with Enhanced Proton Conductivity and Dimensional Stability for Proton Exchange Membrane Fuel Cells
A series of fluorine-substituent-containing sulfonated poly(arylene ether) membranes was synthesized and evaluated as proton exchange membranes for fuel cell applications. Fluorinated difluoro monomers were first reacted with three different diol monomers through nucleophilic polycondensation to obtain 4FP4-series poly...