Abstract
For preparation of a graft copolymer having a polyethylene main chain and poly(N-acylethylenimine) graft chain, poly[ethylene-co-(vinylacetate)-g-(2-alkyl-2-oxazoline)]s (4) were prepared. First, poly[ethylene-co-(vinyl acetate)] (1) was saponified to give polymer (2) having a hydroxy group. Secondly, 2 was tosylated or bromoacetylated giving rise to polymer (3a) or (3b). Then, polymer 3 was employed to initiate the cationic ring-opening polymerization of 2-methyl-2-oxazoline or 2-ethyl-2-oxazoline to produce a graft copolymer which was isolated by reprecipitation. During the graft copolymerization, a homopolymer of 2-oxazoline was produced probably due to chain-transfer, the highest graft-efficiency being 50%.
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Kobayashi, S., Shimano, Y. & Saegusa, T. Synthesis of Poly[ethylene-co-(vinyl acetate)-g-(2-alkyl-2-oxazoline)]s. Polym J 23, 1307–1315 (1991). https://doi.org/10.1295/polymj.23.1307
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DOI: https://doi.org/10.1295/polymj.23.1307