A new hydrogel that combines poly(ethylene glycol) and β‐cyclodextrin has been synthesized. Both components are linked by using a diisocyanate (HDMI), first by end‐capping the poly(ethylene glycol) with isocyanate groups an then reacting it with β‐cyclodextrin, forming urethane links. Hydrogels of molar compositions (β‐cyclodextrin/poly(ethylene glycol)) ranging from 1/4 to 1/14 have been synthesized. These hydrogels swell quickly and their water contents depend upon temperature. The gels are temperature resistant and show an elastomeric behavior.
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Cesteros et al. (2006) studied this question.
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