Abstract
IT lias been observed by Fuoss and Strauss1 that the viscosity behaviour of a polymer such as polyvinylbutyl pyridonium bromide, containing ionizable groups, in water is not the same as that of a neutral polymer. The reduced viscosity (ηp/C) of the former (a polyelectrolyte), unlike that of a neutral polymer, increases on dilution. A similar behaviour has been noted by Pals and Hermans2 in the case of sodium pectinate. Basu3 has studied the viscosity of sodium thymonucleate, which also behaves as a polyelectrolyte. The present communication describes the viscosity measurements of the sodium salt of methyluronic acid – xylan complex4 (a jute hemicellulose fraction). As this uronic acid is believed to occur in a chain molecule, it was thought that the sodium salt of the complex in aqueous solution might also behave as a polyelectrolyte. This does not appear to have been studied hitherto.
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References
Fuoss and Strauss, J. Polymer Sci., 3, 602 (1948).
Pals and Hermans, J. Polymer Sci., 3, 897 (1948).
Basu, Nature, 168, 341 (1951).
Sarkar, Nature, 167, 357 (1951).
Chatterjee and Sarkar, Proc. Nat. Inst. Sci. (India), 12, 23 (1946).
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SAHA, P. Viscosity of Sodium Salt of Polyuronide Hemicellulose from Jute. Nature 170, 281 (1952). https://doi.org/10.1038/170281a0
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DOI: https://doi.org/10.1038/170281a0
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