Shukla, Sandeep Kumar and Shaikh, A Wasif and Gunari, Nikhil and Kulkarni, R. A. and Bajpai, A. K. (2009) Self assembled hydrophobic nanoclusters of poly(methyl methacrylate) embedded into polyvinyl alcohol based hydrophilic matrix: preparation and water absorption study. Journal of Applied Polymer Science, 11. pp. 1300-1310. ISSN 1097-4628

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Abstract

Hydrophilic matrices containing nanosized clusters of hydrophilic moieties have demonstrated potential applications in biomedical field. A novel hydrogel containing nanosized domains (20–35 nm) of hydrophobic moieties of poly(methyl methacrylate) (PMMA) was prepared by grafting crosslinked poly(acrylic acid-co-methyl methacrylate) chains onto polyvinyl alcohol (PVA) backbone using an efficient redox system. The graft copolymerization process was investigated to observe the influence of gel components on the kinetic parameters of grafting such as rate of grafting (Rg), grafting yield (Gy) and grafting efficiency (Ge). The prepared graft nanohydrogel was evaluated for its water sorption potential under varying chemical composition of the gel and changing pH, temperature, and ionic strength of the swelling bath. The swelling process was also examined mechanistically and diffusion constants (D) of water molecules through the swellable nanohydrogel were also evaluated.

Item Type: Article
Subjects: Polymer Science and Engineering
Divisions: UNSPECIFIED
Depositing User: MR Abdul Wasif A Shaikh
Date Deposited: 15 Nov 2012 12:04
Last Modified: 03 Mar 2015 06:04
URI: http://ncl.csircentral.net/id/eprint/1079

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