Abstract
The influence of freezing of a reaction mass on the properties of the resulting covalently cross-linked gels is exemplified by a system composed of a solution of chitosan in aqueous acetic acid and glutaric dialdehyde serving as a cross-linking agent. The freezing is shown to lead to a noticeable decrease of critical concentration of gelation as compared with the reactions of polymeric chain cross-linking in ordinary conditions. Consideration is given to some properties of three-dimensional networks obtained by cryostructurization.
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Lozinsky, V.I., Vainerman, E.S. & Rogozhin, S.V. Study of cryostructurization of polymer systems. Colloid & Polymer Sci 260, 776–780 (1982). https://doi.org/10.1007/BF01452068
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DOI: https://doi.org/10.1007/BF01452068