Abstract
It is shown that the concentration dependence of the coils-solvent permeability coefficient, experimentally determined over a wide range, may be well described by corrected Brinkman’s model for the fluid flow relative to a swarm of permeable spheres of uniform permeability. A method of checking model reliability is developed. A new method of polymer molecular weight determination is elaborated on the basis of this model. According to this method, molecular weight may be calculated from the function describing concentration dependence of permeability coefficient in a semidilute regime along with a permeability coefficient value in dilute solution.
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P. M. Adler, P. M. Mills, and D. C. Quemada, AIChE J., 24, 354 (1978).
L. Gmachowski, presented at the 8th International Congress of Chemical Engineering, Chemical Equipment Design and Automation/CHISA/the 298th Event of the European Federation of Chemical Engineering, Prague, September 3—7, 1984.
H. C. Brinkman, Appl. Sci. Res., A1, 81 (1948).
H. C. Brinkman, Proc. Acad. Sci. Amsterdam, 50, 618 (1947).
F. Brochard and P. G. de Gennes, Macromolecules, 10, 1157 (1977).
J. Roots and B. Nyström, Polymer, 20, 148 (1979).
.P. F. Mijnlieff and W. J. M. Jaspers, Trans. Faraday, Soc., 67, 1837 (1971).
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Gmachowski, L. A New Method of Polymer Molecular Weight Determination Based on the Permeable Sphere Model. Polym J 18, 783–789 (1986). https://doi.org/10.1295/polymj.18.783
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DOI: https://doi.org/10.1295/polymj.18.783