Bulletin of the Korean Chemical Society

  • 제20권11호
  • /
  • Pages.1323-1328
  • /
  • 1999
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지
DOI QR코드

DOI QR Code

Interdiffusion at Interfaces of Binary Polymer Mixtures with Different Molecular Weights

  • 발행 : 1999.11.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

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.

키워드

참고문헌

  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.