Synthesis and properties of a well-defined copolymer of chlorotrifluoroethylene and N-vinylpyrrolidone by xanthate-mediated radical copolymerization under 60Co γ-ray irradiation

Abstract

Living/controlled radical copolymerization of chlorotrifluoroethylene and N-vinylpyrrolidone has been successfully achieved at room temperature under ⁶⁰Co γ-ray irradiation in the presence of ethyl 2-(ethoxycarbonothioylthio)acetate. The living/controlled character of the polymerization was confirmed by GPC and NMR analyses, as well as the chain extension polymerization. The physical properties of the obtained polymers were investigated and the experimental results indicate that the fluorinated copolymer showed excellent film-forming characteristics and high mechanical properties. Moreover, the fluorinated amphiphilic block copolymers prepared by chain extension polymerization show good biocompatibility.