Proton-Conducting Polymer Electrolyte Membranes Based on Fluoropolymers Incorporating Perfluorovinyl Ether Sulfonic Acids and Fluoroalkenes: Synthesis and Characterization By courtesy of: R. Souzy, B. Ameduri, B. Boutevin, P. Capron, D. Marsacq, G. Gebel Fuel Cells, 2005, 5, 383