Novel phosphonated perfluorocarbon polymers

The copolymerization or terpolymerization of dimethyl perfluoro(3-vinyloxypropyl)phosphonate with tetrafluoroethylene and perfluoro(propyl vinyl) ether yields new perfluorocarbon polymers bearing phosphono groups. A new method for the synthesis of perfluorovinyloxy-substituted perfluoroalkylphosphonic acid derivatives have been also developed by the transformation reactions of corresponding carboxylic esters, involving the facile formation of CF–P bonds by the reaction of perfluoroalkyl iodides with tetraethyl diphosphite. Some of the fundamental properties of these polymers are described.