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Rheological properties of agarose gels with different molecular weights

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Abstract

Four samples of agarose whose sulfate residue content was virtually the same and for which the degrees of regularity of alternation of D-galactose and 3,6-anhydro-L-galactose were almost equal, were prepared with differing values of the intrinsic viscosity of dilute aqueous solutions. They were used to examine the relationship between molecular weight and the rheological properties of agarose gels. The stress relaxation, dynamic Young's modulus, stress-strain relation and absorbance of light were observed at several temperatures for agarose gels prepared from these fractions at various concentrations. The results are compared with those reported in the literature for gelatin gels.

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Watase, M., Nishinari, K. Rheological properties of agarose gels with different molecular weights. Rheol Acta 22, 580–587 (1983). https://doi.org/10.1007/BF01351404

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