Abstract
Calorimetric measurements have been carried out to determine to which extent water interacts with p-HEMA gels and with p-(HEMA+MAA) gels. It appeared, that 0.14 g water/g dry p-HEMA and 0.23 g water/g dry p-(HEMA+MAA) show strong negative enthalpy changes on sorption in the polymer, the enthalpy changes being −180 J/g and −360 J/g water respectively.
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Bouwstra, J.A., van Miltenburg, J.C., Roorda, W.E. et al. Polymer-water interactions in cross-linked gels determined by calorimetric measurements. Polymer Bulletin 18, 337–341 (1987). https://doi.org/10.1007/BF00256234
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DOI: https://doi.org/10.1007/BF00256234