Abstract
The radical copolymerization of two vinyl sulphonates, vinyl methanesulphonate (MVS) and vinyl benzenesulphonate (BVS), with vinyl acetate (VAc) was carried out to prepare vinyl sulphonate-vinyl acetate copolymers. The monomer reactivity ratios of these copolymerization systems were estimated to be r 1(VAc) = 0.66, r 2(MVS) = 0.26 and r 1(VAc) = 0.71, r 2(BVS) = 0, respectively. The MVS/VAc copolymer thus obtained was found to initiate the polymerization of 2-methyl-2-oxazoline (OXZ) to produce poly(VAc)-poly(OXZ) graft copolymer, which was subsequently converted to poly(vinyl alcohol)-poly(OXZ) graft copolymer through the saponification of the poly(VAc) segment of the parent poly(VAc)-poly(OXZ) graft copolymer.
Published Version
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