Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Interdiffusion at Interfaces of Binary Polymer Mixtures with Different Molecular Weights

  • Published : 1999.11.20
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Abstract

Interdiffusion between two partially miscible polymers of similar chemical structures with different molecular weights is characterized theoretically by using the reptation model for the interdiffusion. This model provides more reliable results than the early Rouse model for same molecular weights, compared with the experiments. Furthermore, by introducing the molecular weight ratio R into the reptation model, we can see the dynamic effect of molecular weight on the diffusion behaviors of the asymmetric system. Near the critical point the diffusion behaviors of asymmetric binary polymer mixtures are well characterized by the interfacial width W(t), the mass transport M(t) for the different values of the Flory Χ parameter and different molecular weight ratios ofpolymers of the diffusion couple. These two quantities and composition profiles by this model give betteragreement with experiments.

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References

  1. The Theory of Polymer Dynamics Doi, M.;Edwards, S. F.
  2. Nature(London) v.321 Jones, R. A. L.;Klein, J.;Donald, A. M.
  3. Phys. Rev. Lett. v.57 Composto, R. J.;Mayer, J. W.;Kramer, E.;White, D. M.
  4. Polymer-Polymer Miscibility Olabisi, O.;Robenson, L. M.;Shaw, M. T.
  5. Scaling Concepts in Polymer Physics de Gennes, P. G.
  6. Phys. Rev. Lett. v.63 Chaturvedi, U. K.;Steiner, U.;Zak, O.;Krausch, G.;Klein, J.
  7. Phys. Rev. Lett. v.64 Steiner, U.;Krausch, G.;Schatz, G.;Klein, J.
  8. J. Mater. Sci. v.26 Composto, R. J.;Kramer, E. J.
  9. Polymer v.36 Jabbari, E.;Peppas, N. A.
  10. J. Chem. Phys. v.56 Helfand, E.;Tagami, Y.
  11. J. Chem. Phys. v.72 de Gennes, P. G.
  12. J. Chem. Phys. v.73 Pincus, P.
  13. Macromolecules v.15 Leibler, L.
  14. J. Chem. Phys. v.79 Binder, K.
  15. J. Phys. (Paris) v.51 Harden, J. L.
  16. Macromolecules v.26 Wang, S.-Q.;Shi, Q.
  17. Principles of Polymer Chemistry Flory, P. J.
  18. J. Chem. Phys. v.422 Cahn, J. W.
  19. J. Chem. Phys. v.28 Cahn, J. W.;Hilliard, J. E.
  20. Macromolecules v.16 Brochard, F.;Jouffory, J.;Levinson, P.
  21. J. Chem. Phys. v.21 Rouse, P. E.
  22. Physics 3 v.3 de Gennes, P. G.
  23. J. Chem. Phys. v.55 de Gennes, P. G.
  24. J. Phys. v.A6 Edwards, F.;Grant, J.
  25. J. Phys. (Paris) v.42 de Gennes, P. G.
  26. J. Chem. Phys. v.62 Helfand, E.;Sapse, A. M.
  27. Macromolecules v.18 Green, P. F.;Palmstrom, C. J.;Mayer, J. W.;Kramer, E. J.
  28. Polymer v.39 Shearmur, T. E.;Clough, A. S.;Drew, D. W.;van der Grinten, M. G. D.;Jones, R. A. L.
  29. J. Polym. Sci. Polym. Phys. Ed. v.24 Wu, S.;Chuang, H.;Han, C. D.