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Liquid-liquid phase separation in multicomponent polymer solutions

IV. Coexistence curves

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Summary

The liquid-liquid phase behaviour of solutions of multicomponent polymers in a single solvent can be described in detail with theFlory-Huggins theory. All phenomena, predicted by theory with the aid of numerical calculations, could be qualitatively verified by experiment. The relative positions of the coexistence curves depend on the overall polymer concentration in that their two branches get closer together as the polymer content of the system increases. Shadow curves may exhibit peculiar backward deflection. These effects arise from the presence of a molecular weight distribution in the polymer, the details of which are reflected in the shape of the various coexistence curves.

Zusammenfassung

Das Entmischungsverhalten von vielkomponentigen Polymeren in einem einzelnen Lösungsmittel kann mit derFlory-Huggins Theorie beschrieben werden. Sämtliche durch die Theorie mit Hilfe numerischer Rechnungen vorausgesagten Phänomene konnten experimentell qualitativ verifiziert werden. Die relativen Lagen der Koexistenzkurven hängen so von der Gesamtkonzentration ab, daß ihre zwei Zweige mit steigendem Gehalt an Polymeren zusammenrücken. Schattenkurven können merkwürdige Zurückbiegungen zeigen. Diese Effekte rühren von einer Molekulargewichtsverteilung des Polymeren her, deren Einzelheiten sich in den verschiedenen Koexistenzkurven widerspiegeln.

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References

  1. Koningsveld, R. andA. J. Staverman, J. Polymer Sci. (to be published). Ibid., Series C (in press).

  2. Koningsveld, R. andA. J. Staverman (J. Polymer Sci., Series A2, in press).

  3. McIntyre, D. et al., Amer. Chem. Soc. meeting, Atlantic City, September 1965 (to be published).

  4. Rehage, G. andH. J. Palmen (to be published);H. J. Palmen, Thesis (Aachen 1965).

  5. Flory, P. J., Principles of Polymer Chemistry (Cornell 1953).

  6. Rehage, G. et al., Makromol. Chem.88, 232 (1965); J. Polymer Sci., Series C (in press).

    Google Scholar 

  7. Tompa, H., Trans. Farad. Soc.45, 1142 (1949).

    Google Scholar 

  8. Francis, A. W. andW. H. King, in: Advance in Petroleum Chemistry and Refining, Vol. I, p. 436 (1958).

    Google Scholar 

  9. Koningsveld, R., Thesis (Leiden 1967).

  10. Koningsveld, R. andA. J. Staverman, J. Polymer Sci.,B 4, 759 (1966).

    Google Scholar 

  11. Tung, L. H., Ibid.,61, 449 (1962).

    Google Scholar 

  12. Hengstenberg, J. andF. Käsbauer, Festschrift Carl Wurster, BASF A.G., Ludwigshafen a. Rh., 1960, p. 259; Abstract in Angew. Chem.72, 275 (1960).

  13. Okamoto, H. andK. Sekikawa, J. Polymer Sci.55, 597 (1961);H. Okamoto, Ibid.,A2, 3451 (1964); J. Phys. Soc. Japan14, 1388 (1959); Rev. Electr. Comm. Lab.9, 31 (1961).

    Google Scholar 

  14. Pennings, A. J. (to be published).

  15. Scholte, Th. G. (J. Polymer Sci., Series A 2, in press).

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Author notes

  1. R. Koningsveld

    Present address: Central Laboratory, Staatsmijnen/DSM, Geleen, The Netherlands

  2. A. J. Staverman

    Present address: Laboratory of Inorganic and Physical Chemistry, Rijksuniversiteit, Leiden, The Netherlands

Authors and Affiliations

  1. Central Laboratory, Staatsmijnen/DSM, Geleen, The Netherlands

    A. J. Staverman

  2. Laboratory of Inorganic and Physical Chemistry, Rijksuniversiteit, Leiden, The Netherlands

    R. Koningsveld

Authors
  1. R. Koningsveld
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  2. A. J. Staverman
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Koningsveld, R., Staverman, A.J. Liquid-liquid phase separation in multicomponent polymer solutions. Kolloid-Z.u.Z.Polymere 218, 114–124 (1967). https://doi.org/10.1007/BF01500352

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  • DOI: https://doi.org/10.1007/BF01500352

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