SYNTHESIS OF POLY[ETHYLENE-CO-(VINYL ACETATE)-G-(2-ALKYL-2-OXAZOLINE)]S

被引:5
|
作者
KOBAYASHI, S [1 ]
SHIMANO, Y [1 ]
SAEGUSA, T [1 ]
机构
[1] KYOTO UNIV,FAC ENGN,DEPT SYNTHET CHEM,KYOTO 606,JAPAN
关键词
POLY(2-OXAZOLINE) GRAFT COPOLYMER; POLY[ETHYL-CO-VINYL ACETATE); VINYL ALCOHOL UNIT; TOSYLATION; BROMOACETYLATION;
D O I
10.1295/polymj.23.1307
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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%.
引用
收藏
页码:1307 / 1315
页数:9
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