Scaling Laws in Polysaccharide Rheology: Comparative Analysis of Water and Ionic Liquid Systems.

ABSTRACT: This study investigates the rheological behavior of two plant-based polysaccharides, with different degrees of hydrophilicity, agar (highly hydrophilic) and guar gum (hydrophilic), in water and 1-ethyl-3-methylimidazolium acetate (EMImAc). The rheological response of these polymers is highly dependent on the solvent's ability to disrupt intermolecular associations. In water, agar forms hydrogels, while guar gum behaves as a viscoelastic liquid with slow modes. The plateau modulus (G_N⁰) scales with polymer concentration (c) as G_N⁰ ∼ c³, consistent with other natural polymers. In EMImAc, both polysaccharides form viscoelastic liquids, exhibiting G_N⁰ ∼ c^2.3, as exp

SUBMITTER: Mohamed Yunus RA 

PROVIDER: S-EPMC11480991 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature