Synthesis and characterization of a well-defined graft copolymer containing fluorine grafts by "living"/controlled radical polymerization

The well-defined graft copolymer consisting of side chains containing fluorine was synthesized by atom transfer radical polymerization (ATRP) of 2,2,3,3,4,4,5,5-octafluoropentyl acrylate (OFPA) with the copolymer of styrene and chloromethylstyrene as macro-initiator, which was first synthesized by the nitroxidemediated copolymerization of styrene (St) and 4-chloromethylstyrene (CMS) at 130°C with benzoyl peroxide/4-hydro-TEMPO as initiator. These copolymers, i.e. P(St-co-CMS) and P(St-g-OFPA), were characterized by means of GPC, IR and 1H NMR, respectively. The water contact angles on polystyrene films containing small amount of P(St-g-OFPA) as additive were also measured and studied.