Shinde, V. S. ; Badiger, M. V. ; Lele, A. K. ; Mashelkar, R. A. (2001) Core-shell morphology in poly(N-isopropyl acrylamide) copolymer gels induced by restricted diffusion of surfactant Langmuir, 17 (9). pp. 2585-2588. ISSN 0743-7463
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Official URL: http://pubs.acs.org/doi/abs/10.1021/la000261m
Related URL: http://dx.doi.org/10.1021/la000261m
Abstract
In this paper, we report on the synthesis of copolymer gels of poly(N-isopropyl acrylamide) and poly(acryloyl aminoacids) and their interaction with anionic surfactant, namely, sodium dodecyl sulfate (SDS). While we were studying the swelling behavior of these copolymer gels in SDS solutions, we observed core-shell morphology in the swollen gels along with two discontinuous volume transitions. Such morphologies have potential applications in drug delivery systems. We provide a mechanistic interpretation of these new observations on the basis of electrostatic charge repulsion and restricted diffusion of surfactant into the gel.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 22157 |
| Deposited On: | 23 Nov 2010 08:13 |
| Last Modified: | 16 Jul 2012 19:16 |
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