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A combined effect of freeze--thaw cycles and polymer concentration on the structure and mechanical properties of transparent PVA gels

IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur

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Relation http://eprints.nmlindia.org/4915/
http://iopscience.iop.org/1748-605X/7/1/015006
 
Title A combined effect of freeze--thaw cycles and polymer concentration on the structure and mechanical properties of transparent PVA gels
 
Creator Gupta, Siddhi
Goswami, Sudipta
Sinha, Arvind
 
Subject Biomaterials
 
Description Transparent poly(vinyl alcohol) (PVA) hydrogel films, derived from aqueous solutions of varying concentration, were synthesized by the cyclic freeze–thaw method (0°–37 °C). This study demonstrates a variation in the transparency, degree of crystallinity, wettability, swelling and mechanical properties of the hydrogels as a function of the solution concentration and the number of freeze–thaw cycles for a given average molecular weight (95 000 Da). The study manifests a strong control of the number of freeze–thaw cycles on the structure–property correlations of the synthesized transparent PVA hydrogels, revealing the possibility of obtaining a window of structural and process parameters for the physically cross-linked hydrogels, making them suitable for cell–gel interactions.
 
Publisher IOP Science
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.nmlindia.org/4915/1/sidhi.pdf
Gupta, Siddhi and Goswami, Sudipta and Sinha, Arvind (2012) A combined effect of freeze--thaw cycles and polymer concentration on the structure and mechanical properties of transparent PVA gels. Biomedical Materials, 7 (1). 015006-1.