Journal
EUROPEAN POLYMER JOURNAL
Volume 38, Issue 11, Pages 2313-2320Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0014-3057(02)00106-4
Keywords
xanthan; poly(vinyl alcohol); superabsorbant hydrogels; epichlorohydrin
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The swelling properties of some superabsorbant composite hydrogels, based on xanthan and poly(vinyl alcohol) and crosslinked with epichlorohydrin, were studied. The maximum swelling degree of the hydrogels and the swelling rate constant were determined as a function of the hydrogel's composition (the % of poly(vinyl alcohol) in the polymer mixture and the amount of crosslinking agent), the crosslinking reaction conditions (the time and the temperature of the crosslinking reaction), and the composition of the swelling solutions (the glycerin/water ratio and the concentration of the electrolyte). (C) 2002 Elsevier Science Ltd. All rights reserved.
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