INITIATOR-FREE PHOTOEMULSION POLYMERIZATION OF VINYL PROPIONATE AND ITS COPOLYMERIZATION WITH VINYL-ACETATE

被引：2

作者：

YAMAMOTO, T

HANATANI, M

HIROTA, K

KISHIBE, H

SANGEN, O

FUKAE, R

KAMACHI, M

SATO, T

机构：

[1] HIMEJI JUNIOR COLL,HIMEJI,HYOGO 670,JAPAN

[2] OSAKA UNIV,FAC SCI,TOYONAKA,OSAKA 560,JAPAN

[3] KURARAY CO LTD,CENT RES LABS,KURASHIKI,OKAYAMA 710,JAPAN

来源：

KOBUNSHI RONBUNSHU | 1993年 / 50卷 / 04期

关键词：

INITIATOR-FREE; PHOTOEMULSION POLYMERIZATION; COPOLYMERIZATION; VINYL PROPIONATE; VINYL ACETATE; TACTICITY CONTROL;

D O I：

10.1295/koron.50.223

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Initiator-free photo-emulsion polymerization of vinyl propionate (VPr) and its copolymerization with vinyl acetate (VAc) were carried out in aqueous media at 0-degrees-C by using polyoxyethylene nonyl phenyl ether sodium sulfate as an emulsifier. In each case, poly(vinyl propionate) (PVPr) or the copolymer was obtained in a good yield. The average degree of polymerization (P(n)) of poly(vinyl alcohol) (PVA) obtained by saponification of PVPr was not high, and the ratios of isotactic triad (I), heterotactic triad (H), and syndiotactic triad (S) were 18.5, 49.6, and 31.6%, respectively. P(n)s of PVA's from the copolymers were higher than those from PVPr's, and the ratios of the tacticites of PVA's from the copolymers varied with varying feed monomer compositions.

引用

页码：223 / 225

页数：3

共 8 条

[1] DYNAMIC MECHANICAL BEHAVIORS OF POLY(VINYL ALCOHOL) FILM WITH HIGH SYNDIOTACTICITY [J].