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Generalized reptation model

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  • Polymer Science
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Summary

The reptation model is generalized on the basis of a theory which accounts for hindered defect diffusion along the chain. A basic ingredient of the theory is a waiting time distribution for the hops of elementary defects which store length. Important rheological quantities are found to generally depend on fractional powers of the molecular mass rather than on integer powers as in the conventional reptation picture.

Zusammenfassung

Ein verallgemeinertes Reptationsmodell wird vorgestellt. Entlang einer Polymerkette berücksichtigt es die gehinderte Difussion von Defekten, die Länge speichern. Dieser Effekt wird beschrieben mittels einer Wartezeitverteilung für die Defektplatzwechselvorgänge. In der Folge findet man für wichtige rheologische Größen Molekulargewichtsabhängigkeiten in Form von Potenzgesetzen mit gebrochenen Exponenten an Stelle der ganzzahligen Exponenten des konventionellen Reptationsmodells.

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References

  1. De Gennes, P. G., J. Chem. Phys.55, 572 (1971).

    Google Scholar 

  2. Doi, M., S. F. Edwards, J. C. S. Faraday II74, 1818 (1978).

    Google Scholar 

  3. Graessley, W. W., Adv. Polym. Sci.16, 1 (1974).

    Google Scholar 

  4. De Gennes, P. G., Scaling Concepts in Polymer Physics, p. 223, Cornell University Press, (Ithaca and London, 1979).

    Google Scholar 

  5. Wendel, H., J. Noolandi, submitted to Macromolecules.

  6. Scher, H., M. Lax, Phys. Rev.B7, 4491 (1973).

    Google Scholar 

  7. Klafter, J., R. Silbey, Phys. Lett.76A, 143 (1980).

    Google Scholar 

  8. Noolandi, J., Phys. Rev. B16, 4474 (1977); F. W. Schmidlin, Phil. Mag. B41, 535 (1980).

    Google Scholar 

  9. Klein, J., B. J. Briscoe, Proc. R. Soc. Lond. A365, 53 (1979); J. Klein, Phil. Mag. A43, 771 (1981).

    Google Scholar 

  10. Prest, W. M., R. S. Porter, Polym. J.4, 154 (1973).

    Google Scholar 

  11. Ferry, J., Viscoelastic Properties of Polymers, John Wiley and Sons (New York, 1970).

    Google Scholar 

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Wendel, H. Generalized reptation model. Colloid & Polymer Sci 259, 908–910 (1981). https://doi.org/10.1007/BF01524812

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  • DOI: https://doi.org/10.1007/BF01524812

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