PREPARATION OF POLY(VINYL ALCOHOL) AS THE DISPERSANT FOR SUSPENSION VINYL-CHLORIDE POLYMERIZATIONS

被引：10

作者：

FABINI, M

BOBULA, S

RUSINA, M

MACHO, V

HARUSTIAK, M

机构：

[1] SLOVAK UNIV TECHNOL BRATISLAVA, FAC CHEM TECHNOL, CS-81237 BRATISLAVA, SLOVAKIA

[2] NOVAKY CHEM WORKS, CS-97271 NOVAKY, CZECH REPUBLIC

来源：

POLYMER | 1994年 / 35卷 / 10期

关键词：

POLY(VINYL ALCOHOL); DISPERSANT; SUSPENSION POLYMERIZATION;

D O I：

10.1016/0032-3861(94)90251-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The study of the influence of the reaction conditions of alkaline catalysed methanolysis or hydrolysis of methanolic poly(vinyl acetate) (PVAc) solution shows that for PVAc with an average degree of polymerization of approximately 1140 the optimal degree of hydrolysis for use as a dispersant in the suspension polymerization of vinyl chloride is approximately 71 mol %. Also, the cloud point of aqueous solutions with 1 wt % poly(vinyl alcohol) (PVA) is at 23-29-degrees-C. It is necessary to minimize the amount of water present during PVAc methanolysis. PVA samples produced under optimal conditions can be used as dispersants for the suspension polymerization of vinyl chloride.

引用

页码：2201 / 2204

页数：4

共 5 条

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HARRIS, HE ;

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[3]

KIRKOTHMER, 1983, ENCY CHEM TECHNOLOGY, V23, P861

[4]

Nilsson H, 1985, J VINYL TECHNOL, V7, P112

[5]

SHIRAISHI M, 1973, BR POLYM J, V5, P419

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