Radio-Frequency Plasma Polymers Containing Ionic Phosphonate Groups. 1. Copolymerization of Perfluoroallylphosphonic Acid and Chlorotrifluoroethylene By courtesy of: Michael J. Danilich, Dominic Gervasio, Donald J. Burton, and Roger E. Marchant Macromolecules 1995,28, 5567-5574