Gupta, Siddhi and Pramanick, A K and Kailath, A J and Mishra, T and Guha, Avijit and Nayar, S and Sinha, Arvind (2009) Composition dependent structural modulations in transparent poly(vinyl alcohol) hydrogels. Colloids and Surfaces B: Biointerfaces, 74 (1). pp. 186-190.
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Transparent and stable Poly(vinyl alcohol) hydrogels were synthesized from polymer aqueous solution without resorting to a mixed solvent such as dimethyl sulfoxide and water. Contrary to the reported methods involving hydrogen bond induced physical crosslinking by repeated freeze–thawing at −20 °C, the present process demonstrates the gelation taking place at relatively higher temperature, i.e. 0 °C. While maintaining transparency in all the synthesized hydrogels, the present paper reports systematic structural and morphological variations in the hydrogels as a function of polymer concentration.
|Uncontrolled Keywords:||Poly(vinyl alcohol); Hydrogels; Freeze–thawing|
|Divisions:||Material Science and Technology|
|Deposited By:||Sahu A K|
|Deposited On:||02 Jun 2010 11:44|
|Last Modified:||15 Dec 2011 10:50|
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