SYNTHESIS OF HIGH-MOLECULAR-WEIGHT POLY(VINYL ALCOHOL) OF VARIOUS TACTIC CONTENTS THROUGH PHOTOEMULSION COPOLYMERIZATION OF VINYL-ACETATE AND VINYL PIVALATE
被引:20
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作者:
YAMAMOTO, T
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机构:HIMEJI JUNIOR COLL,HIMEJI 670,JAPAN
YAMAMOTO, T
FUKAE, R
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机构:HIMEJI JUNIOR COLL,HIMEJI 670,JAPAN
FUKAE, R
SASO, T
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机构:HIMEJI JUNIOR COLL,HIMEJI 670,JAPAN
SASO, T
SANGEN, O
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机构:HIMEJI JUNIOR COLL,HIMEJI 670,JAPAN
SANGEN, O
KAMACHI, M
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机构:HIMEJI JUNIOR COLL,HIMEJI 670,JAPAN
KAMACHI, M
SATO, T
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机构:HIMEJI JUNIOR COLL,HIMEJI 670,JAPAN
SATO, T
FUKUNISHI, Y
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机构:HIMEJI JUNIOR COLL,HIMEJI 670,JAPAN
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
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.