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Dynamic scattering from ternary mixtures of polymers in solution

  • M. Benmouna
  • E. W. Fischer
  • H. Benoit
  • Z. Benmansour
  • T. A. Vilgis
Chapter
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 91)

Abstract

The dynamic scattering properties of ternary mixtures made up of two polymer components and a solvent are considered. Examples of symmetrical and nonsymmetrical mixtures are examined. Particular attention is focused on the interpretation of the eigenmodes. It was recently shown that the eigenmodes for ternary mixtures could be rigorously identified with the cooperative and interdiffusive modes only if the two polymer components are identical, except for their optical properties. Here, we consider several mixtures made up of different polymer constituents and compare the variations of the relaxation frequencies with the scattering wave vector q. In all the examples considered, the behavior of (Γ, Γ T) and (Γ′, Γ 1) are found to be qualitatively the same. This leads to the conclusion that, although the eigenmodes can be identified rigorously as the cooperative and interdiffusive dynamical processes only for symmetrical mixtures with a finite χ-parameter, they can still be so-identified approximately even in the case of different polymers and nonsymmetrical mixtures under certain experimental conditions.

Key words

Dynamic scattering ternary mixtures cooperative mode inter-diffusive mode 

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References

  1. 1.
    Borsali R, Duval M, Benmouna M (1989) Macromolecules 22:816CrossRefGoogle Scholar
  2. 2.
    Borsali R, Duval M, Benmouna M (1989) Polymer 30:610CrossRefGoogle Scholar
  3. 3.
    Giebel L, Borsali R, Fischer EW, Meier G (1990) Macromolecules 23:4054CrossRefGoogle Scholar
  4. 4.
    Tirrell M (1984) Rubber Chem Technol 57:523Google Scholar
  5. 5.
    Hanley B, Tirrell M, Lodge T (1985) Polymer Bulletin (Berlin) 14:137CrossRefGoogle Scholar
  6. 6.
    Numasawa N, Kuwamoto K, Nose T (1986) Macromolecules 19:2593CrossRefGoogle Scholar
  7. 7.
    Brown W, Zhou P (1989) Macromolecules 22:3508CrossRefGoogle Scholar
  8. 8.
    Aven MR, Cohen C (1990) Macromolecules 23:476CrossRefGoogle Scholar
  9. 9.
    Csiba T, Jannink G, Durand G, Papoular R, Lapp A, Auvray L, Boué F, Cotton JP, Borsali R (1991) J Phys II 1:381CrossRefGoogle Scholar
  10. 10.
    Akcasu A. Z., Nägele G, Klein R (1991) Macromolecules 24:4414Google Scholar
  11. 11.
    Akcasu A. Z. (1992) In: Brown W (ed) Dynamic Light Scattering; The Method and Some Applications. Oxford University Press, OxfordGoogle Scholar
  12. 12.
    Pusey PN, Fijnaut MM, Vrij A (1982) J Chem Phys 77:4270CrossRefGoogle Scholar
  13. 13.
    Davies P, Snook I, van Megen W, Preston BN, Compar WD (1984) Macromolecules 17:2376CrossRefGoogle Scholar
  14. 14.
    Benmouna M, Benoit H, Duval M, Akcasu ZA (1987) Macromolecules 20:1107CrossRefGoogle Scholar
  15. 15. a)
    Benmouna M, Vilgis TA (1991) Macromolecules 24:3866CrossRefGoogle Scholar
  16. 15. b)
    Benmouna M, Vilgis TA, Polymer Networks Blends, to be publishedGoogle Scholar
  17. 16.
    Benmouna M, Fischer EW, Ewen B, Duval M (1992) J Polym Sci Part B: Polym Phys, submittedGoogle Scholar
  18. 17.
    Benmouna M, Benmansour Z, Fischer EW, Benoit H, Vilgis TA (1992) J Polym Sci Part B: Polym Phys 30:733CrossRefGoogle Scholar
  19. 18.
    Akcasu Z. A., private communicationGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1993

Authors and Affiliations

  • M. Benmouna
    • 1
  • E. W. Fischer
    • 3
  • H. Benoit
    • 2
  • Z. Benmansour
    • 1
  • T. A. Vilgis
    • 3
  1. 1.Institute of Sciences, Physics DepartmentUniversity of TlemcenTlemcenAlgeria
  2. 2.Institut Charles SadronStrasbourgFrance
  3. 3.Max-Planck-Institut für PolymerforschungMainzFRG

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