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Article Dans Une Revue Macromolecular Symposia Année : 2013

Inhomogeneity Development During Slow, Irreversible Cross-Linking of Gelatin

Hayfa Souguir
  • Fonction : Auteur
Tristan Baumberger

Résumé

Gelatin gels, permanently cross-linked following two different routes, exhibit the same phenomenology in which their turbidity builds-up in concert with their elastic modulus. This is analyzed in terms of a minimal model for the chemo-osmotic coupling mechanism first proposed by Bastide and Candau (in: ``Physical Properties of Polymeric Gels'', J.-P. Cohen Addad Ed., J. Wiley & Sons, New York 1996). The analysis points out the important role of labile counterions, which usually stiffen (osmotically) the gel, thereby hindering the coupling. This might be the reason why this a priori generic mechanism was not observed earlier.

Dates et versions

hal-01239412 , version 1 (07-12-2015)

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Citer

Hayfa Souguir, Tristan Baumberger. Inhomogeneity Development During Slow, Irreversible Cross-Linking of Gelatin. Macromolecular Symposia, 2013, 329 (1), pp.41-48. ⟨10.1002/masy.201300006⟩. ⟨hal-01239412⟩
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