On the formation of poly(ethyleneoxide)-poly(vinylalcohol) blends

被引：61

作者：

Mishra, R ^{[1
]}

Rao, KJ ^{[1
]}

机构：

[1] Indian Inst Sci, Ctr Mat Res, Bangalore 560012, Karnataka, India

来源：

EUROPEAN POLYMER JOURNAL | 1999年 / 35卷 / 10期

关键词：

D O I：

10.1016/S0014-3057(98)00283-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(ethyleneoxide)-poly(vinylalcohol) blends were prepared and characterized using thermal, spectroscopic and structural methods, By all indications the blends appear to be microscopically inhomogeneous with no strong interpolymer bonding. The high degree of crystallinity in PEO regions induces a significant degree of ordering in neighbouring PVA regions, as evident from thermal properties. PVA obtained from solvent evaporation exhibits an irreversible endothermic transition which could be order-disorder type. Both IR and NMR spectroscopies also suggest the presence of subtle structural ordering influence of PEO on PVA. It is found to be possible to prepare self supporting films of the blends which consists of fine dispersion of PEO and PVA in each other. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1883 / 1894

页数：12

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