Résumé
Fuel cell can be regarded as potential future alternative source of green Energy. Polymer electrolyte membrane fuel cell (PEMFC) is composed of an electrolyte (usually a membrane which must be an ionic conductor) located between with anode and the cathode. The membrane is a functional polymer which bears protonic, cationic or anionic groups depending on the choice of use and must fulfill drastic requirements. Fluorinated polymers [1] that possess protogen groups are suitable candidates from various strategies: -either by " direct " radical copolymerization of fluoroolefins bearing protogen groups; that strategy has already led to various commercially available products such as Nafion, Flemion, 3M Membrane, Hyflon Ion, Aciplex and others. -or by chemical modifications fluoropolymers. To overcome issues of thermal stability (> 90 °C) and low relative humidity (HR < 30 %) various challenges for the development of protonic PEMFCs will be proposed.