Development of a catalyst for solution of poly(vinyl alcohol) in non-aqueous medium

被引：4
|
作者：
Chetri, Prafulla [1 ]
Dass, Narendra Nath [1 ]
Sen Sarma, Neelotpal [1 ]
机构：
[1] IASST, Div Mat Sci, Gauhati 781035, Assam, India
来源：
CHINESE JOURNAL OF POLYMER SCIENCE | 2008年 / 26卷 / 04期
关键词：
chloro ethane dimethyl sulfoxide; poly(vinyl alcohol); catalyst; solubility;
D O I：
10.1142/S0256767908003060
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Chloro ethane dimethyl sulfoxide, C2H5Cl center dot DMSO (ECl center dot DMSO) was prepared by interaction of acrylic acid with conc. Hydrochloric acid in dimethyl sulfoxide (DMSO) and subsequent decarboxylation with H2O2 solution. The formation of the compound was confirmed by spectral and analytical methods; the molecular weight was determined by cryoscopic method. The solubility of poly(vinyl alcohol) (PVA) in different solvents or mixed solvents at 40 degrees C, 50 degrees C and 60 degrees C temperature in the presence of 0.01% of ECl center dot DMSO was determined. It turned out that ECl center dot DMSO helps dissolution of PVA, and is very effective catalyst in the preparation of esters and acetals of PVA.
引用
收藏
页码：399 / 404
页数：6
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