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Rheological Properties and Structure of Aqueous Solutions of Polysaccharides. Solutions of Sodium Carboxymethylcellulose Fractions of Different Molar Mass

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Abstract

Rheological and spectrophotometric data are obtained that confirm the difference in the conformational state of Na-CMC macromolecules with a degree of polymerization of 120, 916, and 1740 in aqueous solution. It was found that the nonlinearity of the concentration curves of both the structural characteristics and the flow activation parameters is a distinctive feature of the solutions of the fraction of this polysaccharide with the highest molecular weight. It is hypothesized that a uniform fluctuation lattice of intermolecular linkages in which the number of points approaches some limiting value is formed with an increase in the concentration of the high-molecular-weight fraction of Na-CMC in solution.

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Authors and Affiliations

  1. Russian Academy of Sciences, Institute of Chemistry of Solutions, Ivanovo

    S. M. Prusova, I. V. Ryabinina & A. N. Prusov

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  1. S. M. Prusova
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  2. I. V. Ryabinina
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  3. A. N. Prusov
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Prusova, S.M., Ryabinina, I.V. & Prusov, A.N. Rheological Properties and Structure of Aqueous Solutions of Polysaccharides. Solutions of Sodium Carboxymethylcellulose Fractions of Different Molar Mass. Fibre Chemistry 34, 177–180 (2002). https://doi.org/10.1023/A:1020562930015

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