Abstract
Synthesis and Charaterisations of new fluorinated membranes bearing phosphonic acid functions for fuel cell application. Radical copolymerizations of chlorotrifluoroethylene (CTFE) with vinyl ethers such as 2-chloroethyl vinyl ether (CEVE) and ethyl vinyl ether (EVE) were performed at 75 °C in the presence of peroxide initiator (TBPPi). Chemical modifications (Arbuzov reaction) enabled them to synthesize original copolymers further processed as membranes. These films have been characterized chimically and electrochemically. They exhibit interesting conductivities at 130 °C and at low relative humidities.