A viscometric study of dilute aqueous solutions of poly(vinylalcohol)-polyacrylamide mixtures |
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| Authors: | D. Staszewska M. Bohdanecký |
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| Affiliation: | 1. Institute of Chemistry, Kopernik University, Toruń, Poland;2. Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, Prague, Czechoslovakia |
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| Abstract: | The viscosity interaction coefficient, kAB, for the system poly(vinylalcohol)-polyacrylamide-water was determined at 25° by two methods: (a) estimation of the Huggins slope coefficients for mixtures of polymers in different proportions; (b) determination of the intrinsic viscosity of polymer (A) in aqueous solutions of polymer (B). The result, kAB = 0.3, indicates a low degree of overlapping of unlike polymer molecules. |
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