Abstract
The synthesis and characterizations of original poly[CTFEalt-VEoligo(EO)] and poly(F-alkene-alt-GCVE) alternated copolymers (where CTFE, VEoligo(EO), and F-alkene stand for chlorotrifluoroethylene, oligo(ethylene oxide) vinyl ether, hexafluoropropylene (HFP) or perfluoromethyl vinyl ether (PMVE), and glycerol carbonate vinyl ether, respectively) are presented. First, vinyl ethers bearing oligo(ethylene oxide) or carbonate side-group (i.e. 2-oxo-1,3-dioxolan-4-yl-methyl vinyl ether, GCVE) were synthesized by transetherification of ω-hydroxyl oligo(EO) (of different molecular weights (3 and 10 EO units) or glycerol carbonate with ethyl vinyl ether catalyzed by a palladium complex were obtained in 45-74% yields. Although HFP, PMVE, and vinyl ethers do not homopolymerize under radical conditions, they copolymerized readily yielding alternated poly(F-alkene-alt-VE) copolymers that bore carbonate group or oligo(EO) side-chains. The alternated structures of these original poly(F-alkenes-alt-VE) copolymers were confirmed by elemental analysis and by 1H, 19F and 13C NMR spectroscopy. All copolymers were obtained in good yield (61-85 %). Their molecular weights varied depending on the [initiator]o/[monomers]o intial molar ratios, reaching either 3,900-4,600 g mol-1 or 19,000 g.mol-1 with polydispersities below 2.0.