SYNTHESIS OF HIGH-MOLECULAR-WEIGHT POLY(VINYL ALCOHOL) OF VARIOUS TACTIC CONTENTS THROUGH PHOTOEMULSION COPOLYMERIZATION OF VINYL-ACETATE AND VINYL PIVALATE

被引:20
|
作者
YAMAMOTO, T
FUKAE, R
SASO, T
SANGEN, O
KAMACHI, M
SATO, T
FUKUNISHI, Y
机构
[1] HIMEJI JUNIOR COLL,HIMEJI 670,JAPAN
[2] OSAKA UNIV,FAC SCI,TOYONAKA,OSAKA 560,JAPAN
[3] KURARAY CO LTD,CENT RES LABS SAKAZU,KURASHIKI 710,JAPAN
关键词
CONTROL OF TACTICITY; POLY(VINYL ALCOHOL); PHOTOEMULSION COPOLYMERIZATION; VINYL ACETATE; VINYL PIVALATE; SAPONIFICATION;
D O I
10.1295/polymj.24.115
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Photo-emulsion copolymerizations of vinyl acetate (VAc) and vinyl pivalate (VP) were carried out without initiator at 0-degrees-C, and copolymers giving high molecular weight poly(vinyl alcohol) (PVA) with various tacticities were obtained. The tacticities could be controlled between 22.3-12.8% for the isotactic triad and 27.7-38.3% for the syndiotactic triad by varying feed monomer composition.
引用
收藏
页码:115 / 119
页数:5
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