SAPONIFICATION OF HIGH-MOLECULAR-WEIGHT POLY(VINYL PIVALATE)

被引：27

作者：

YAMAMOTO, T

YODA, S

TAKASE, H

SASO, T

SANGEN, O

FUKAE, R

KAMACHI, M

SATO, T

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,KURASHIKI 710,JAPAN

来源：

POLYMER JOURNAL | 1991年 / 23卷 / 03期

关键词：

SAPONIFICATION; HIGH MOLECULAR WEIGHT; POLY(VINYL PIVALATE); POLY(VINYL ALCOHOL); SOLVENT EFFECT;

D O I：

10.1295/polymj.23.185

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 saponification of high molecular weight poly(vinyl pivalate) (PVP) was examined in several solvents, and PVA of P(n) = 18000 and 99% DS (degree of saponification) were obtained by saponification in the absence of oxygen with KOH (6 equivalents per monomer unit) in tetrahydrofuran at 60-degrees-C for 15 min. In acetone, dioxane and methyl ethyl ketone, saponification was performed but marked degradation was observed. Saponification in benzene and dimethyl sulfoxide did not take place. NaOH was not useful because it cause marked degradation in any solvent.

引用

页码：185 / 188

页数：4

共 7 条

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BRANDRUP J, 1967, POLYM HDB

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