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

Mishra, Rachna and Rao, Kalya J (1999) On the formation of poly(ethyleneoxide)-poly(vinylalcohol) blends. In: European Polymer Journal, 35 (10). pp. 1883-1894.

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Abstract

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.

Item Type:	Journal Article
Publication:	European Polymer Journal
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	29 Jun 2011 05:04
Last Modified:	29 Jun 2011 05:04
URI:	http://eprints.iisc.ac.in/id/eprint/38704

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