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Rheological properties and gelation of aqueous cellulose-NaOH solutions

Abstract : The shear rheology of a microcrystalline cellulose dissolved in a 9% NaOH aqueous solution was studied in the steady and oscillatory modes. The cellulose-(9% NaOH-H2O) mixtures show not to be true solutions. In the dilute regime, with cellulose concentration below 1%, the rheological behavior is typical of the one of suspensions. The formation of cellulose aggregates is favored when temperature is increased. In the semidilute regime, an irreversible aggregate-based gelation occurs, being faster with increasing temperature.
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Contributeur : Corinne Matarasso <>
Soumis le : vendredi 5 novembre 2010 - 09:07:41
Dernière modification le : jeudi 24 septembre 2020 - 17:22:54



Cédric Roy, Tatiana Budtova, Patrick Navard. Rheological properties and gelation of aqueous cellulose-NaOH solutions. Biomacromolecules, American Chemical Society, 2003, 4 (2), p.259-264. ⟨10.1021/bm020100s⟩. ⟨hal-00533049⟩



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