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Poly(N-isopropylacrylamide-co-sodium acrylate) hydrogels: Interactions with surfactants

✍ Scribed by Y. M. Mohan; D. K. Joseph; K. E. Geckeler

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
1007 KB
Volume
103
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

Poly(N‐isopropylacrylamide‐co‐sodium acrylate) [poly(NIPAM‐co‐SA)] hydrogels were modified with three different kind of surfactants (cationic, anionic, and nonionic) to study the effect on the swelling properties. The structural variation of the surfactant‐modified hydrogels was investigated in detail. The interaction between the surfactants and the hydrogel varies and strictly depends on the surfactant type. The variation in thermal stability of the modified surfactant hydrogels was investigated and compared with unmodified hydrogel. Further, the hydrogel swelling/diffusion kinetic parameters were investigated and diffusion of water into hydrogel was found to be of the non‐Fickian transport mechanism. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 3423–3430, 2007

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