| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9559241 | Polymer | 2005 | 6 Pages |
Abstract
New spherically shaped crosslinked IPN hydrogels based on chitosan and poly(vinylpyrrolidone) were prepared. The IPN hydrogels were synthesized in two steps: (1) chitosan (CHT) crosslinked beads were obtained by reaction of chitosan with ethyleneglycol diglycidyl ether (EGDE); (2) absorption of a suitable amount of a solution of vinylpyrrolidone (VP) monomer from the porous CHT beads followed to VP polymerization and crosslinking inside the network. Sequential IPN's at different composition were obtained: they reversibly swell in water at various pH and show sensitive volumetric behaviour.
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Authors
E. Marsano, E. Bianchi, S. Vicini, L. Compagnino, A. Sionkowska, J. SkopiÅska, M. WiÅniewski,