Summary
Light scattering measurements on a number of samples of potassium polyphosphate dissolved in 0.1 M NaBr solution in water were made. With fair approximation, the second virial coefficient was found to be inversely proportional toM 0.5 w (M w = Weight-average Molecular Weight). In conjunction with intrinsic viscosities, the values ofM w were used in calculating the radius of gyration,\(\langle \overline {_S 2} \rangle ^{\tfrac{1}{2}}\). The ratio\(\langle \overline {_S 2} \rangle ^{\tfrac{1}{2}} /M_w^{\tfrac{1}{2}}\) was found to be constant indicating that potassium Kurrol Salt exists as random coils in solutions. The average value of Flory constant calculated with the help of the available data was found to be 1.96 × 1021 which is quite close to that predicted by Flory.
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References
Strauss, U. P., E. H. Smith, P. L. Wineman, J. Am. Chem. Soc.75, 3935 (1953).
Strauss, U. P., P. L. Wineman, ibid80, 2366 (1958).
Saini, G., L. Trossarelli, J. Polymer Sci.23, 563 (1957).
Chatterji, A. C., H. N. Bhargava, ibid35, 235 (1959).
Bhargava, H. N., D. C. Srivastava, J. Phys. Chem.74, 36 (1970).
Debye, P., J. Chem. Phys.14, 630 (1940).
Krigbaum, W. R., J. Polymer Sci.18, 315 (1955).
Vogel, A. I., A Text Book of Practical Organic Chemistry, Third Edition (London 1956).
Brice, B. A., M. Halwer, R. Speiser, J. Optical Soc. Am.40, 768 (1950).
Kuris, A., Z. Physik, Chem.34 B, 13 (1936).
Doty, P., J. I. Edsall, Advanc-Protein Chem.6, 54 (1951).
Maron, S. H., R. H. L. Lou, J. Polymer Sci.14, 273 (1954).
Stacey, K., Light-scattering in Physical Chemistry (London 1956).
Tanford, C., Physical Chemistry of Macromolecule, p. 275, (New York 1961).
Battelheim, F. A., Biological Polyelectrolytes, Ed.A. Vies, p. 157 (New York 1970).
Carr, S. H., Biopolymers, byA. G. Walton andJ. Blackwell, pp. 296–342 (New York and London 1973).
Morauetz, H., Macromolecules in Solution, Chapter IV (New York 1965).
Isihara, A., R. Koyama, J. Chem. Phys.25, 712 (1956).
Bhargava, H. N., Ph. D. Thesis, Lucknow University, Lucknow (India) 1959.
Debye, P., J. Chem. Phys. 15636 (1940).
Newman, S., W. R. Krigbaum, C. Laugier, P. J. Flory, J. Polymer Sci.14, 451 (1954).
Flory, P. J., Principle of Polymer Chemistry, p. 283 (New York 1953).
Flory, P. J., T. G. Fox, J. Am. Chem. Soc.73, 1964, 1909, 1915 (1951).
Oster, C.,C. I. Carr, B. Zimm, J. Chem. Phys.18, 830 (1950).
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Bhargava, H.N., Varma, B.K. & Agrawal, P.K. Light-scattering studies on solutions of potassium-polyphosphate. Colloid & Polymer Sci 256, 452–458 (1978). https://doi.org/10.1007/BF01405367
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DOI: https://doi.org/10.1007/BF01405367