HETEROTACTIC POLYVINYL ALCOHOL)

被引：21

作者：

NOZAKURA, S ^{[1
]}

ISHIHARA, S ^{[1
]}

INABA, Y ^{[1
]}

MATSUMUR.K ^{[1
]}

MURAHASH.S ^{[1
]}

机构：

[1] OSAKA UNIV,FAC SCI,DEPT POLYMER SCI,TOYONAKA 560,JAPAN

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1973年 / 11卷 / 05期

关键词：

D O I：

10.1002/pol.1973.170110512

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Bulky substituents in vinyl trialkylsilyl ethers and vinyl trialkylcarbinyl ethers led to heterotactic polymers (H equals 66%). The polymers were converted into PVA and further to poly(vinyl acetate), and tacticity was determined as poly(vinyl acetate). Vinyl triisopropylsilyl ether in nonpolar solvents yielded a heterotactic polymer with a higher percentage of isotactic triads than syndiotactic triads (Hetero-I). Vinyl trialkylcarbinyl ethers in polar solvents gave a heterotactic polymer with more syndiotactic triads than isotactic (Hetero-II). The mechanism of heterotactic propagation was discussed in terms of the Markov chain model.

引用

页码：1053 / 1067

页数：15

共 35 条

[1]

Blatt A. H, 1943, ORGANIC SYNTHESES CO, V2

[2]

BOVEY FA, 1960, J POLYM SCI, V44, P174

[3]

BRAME EG, 1967, J MACROMOL SCI CHEM, V1, P277

[4]

FUENO T, 1965, J POLYM SCI A, V3, P279

[5]

FUJII K, 1962, KOBUNSHI KAGAKU, V19, P124

[6]

FUJII K, 1962, KOBUNSHI KAGAKU, V19, P587

[7]

FURUE M, 1967, KOBUNSHI KAGAKU, V24, P522

[8] INVESTIGATION OF POLYACETALDEHYDE STRUCTURE BY HIGH RESOLUTION NUCLEAR MAGNETIC RESONANCE [J].

GOODMAN, M ;

BRANDRUP, J .

JOURNAL OF POLYMER SCIENCE PART A-GENERAL PAPERS, 1965, 3 (1PA) :327-&

[9]

HARRIS HE, 1964, J POLYM SCI A, P3673

[10]

HIGASHIMURA T, 1966, INT S MACROMOLECULAR

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