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Article Dans Une Revue International Journal of Biological Macromolecules Année : 1998

Swelling kinetics of a polyelectrolyte gel in water and salt solutions. Coexistence of swollen and collapsed phases

Tatiana Budtova
Patrick Navard

Résumé

The swelling of polyelectrolyte gels in water and salt solutions is associated with the presence of up to three coexisting phases: a dry phase, a swollen phase, and a collapsed one due to the binding of metal ions to polyions. Swelling in pure water proceeds in two ways: a transition from the dry to swollen state, whose kinetics scales with the square of the initial gel size, and a further swelling that scales linearly with the initial gel size. We show that there exist various swelling paths depending on the gel interaction with metal ions and their concentration.

Domaines

Matériaux

Dates et versions

hal-00613101 , version 1 (02-08-2011)

Identifiants

Citer

Tatiana Budtova, Patrick Navard. Swelling kinetics of a polyelectrolyte gel in water and salt solutions. Coexistence of swollen and collapsed phases. International Journal of Biological Macromolecules, 1998, 31 (25), pp.Pages 8845-8850. ⟨10.1021/ma981174s⟩. ⟨hal-00613101⟩
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