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Electric birefringence of nonionic micellar solutions near the cloud point

Conference paper
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 73)

Abstract

“New Trends in Colliod Science” contains the proceedings of the foundation meeting of the European Colloid and Interface Society (ECIS), October 1–3, 1986. Representatives from the major European groups working in this field contributed to the conference. The volume contains an up-to-date account of present developments in Colloid Science. The contributions cover a wide scope of subjects, and provide encouragement that structures and transport processes in dense colloidal systems can be understood on basic principles. The main subjects are include:
  • phase diagrams of new surfactant systems

  • microemulsions and their applications

  • vesicles and bilayers

  • transport properties of colloidal systems.

Abstract

The Kerr coefficient B of aqueous solutions of the nonionic amphiphiles C6E3, C8E 4, C10E5 and C12E6 is measured as a function of the temperature T in a temperature region close to the cloud point, and at the concentration corresponding to the minimum of the cloud curve. In all the investigated systems B is found to increase as T approaches the critical temperature T c following a power-law behavior, B≈(T c T) ψ , with an exponent ψ≈0.9. In the case of the system C12E6-H2O which was studied in a wide temperature range, the data are consistent with a moderate micellar growth as a function of T.

Key words

Electric birefringence micelles critical phenomena 

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References

  1. 1.
    Fredericq E, Houssier C (1973) Electric Dichroism and Electric Birefringence, Clarendon Press, Oxford; see also O'Konski CT (ed) (1976) Molecular Electro-Optics, Dekker, New York; Jennigs BR (ed) (1979) Electro-Optics and Dielectrics of Macromolecules and Colloids, Plenum, New YorkGoogle Scholar
  2. 2.
    Hoffmann H (1985) In: Dgiorgio V, Corti M (eds) Physics of Amphiphiles: Micelles, Vesicles and Microemulsions, North-Holland, Amsterdam, p 160Google Scholar
  3. 3.
    Schorr W, Hoffmann H (1981) J Phys Chem 85:3160CrossRefGoogle Scholar
  4. 4.
    Nicoli DF, Elias JG, Eden D (1981) J Phys Chem 85:2866CrossRefGoogle Scholar
  5. 5.
    Hoffmann H, Kielman HS, Pavlovic D, Platz G, Ulbricht W (1981) J Colloid Interface Sci 80:237CrossRefGoogle Scholar
  6. 6.
    Neeson PG, Jennings BR, Tiddy GJT (1983) Faraday Disc Chem Soc 76:353CrossRefGoogle Scholar
  7. 7.
    Degiorgio V, Piazza R (1985) Phys Rev Lett 55:288CrossRefGoogle Scholar
  8. 8.
    Piazza R, Degiorgio V, Bellini T (1986) J Opt Soc Am B 3:1642CrossRefGoogle Scholar
  9. 9.
    Piazza R, Degiorgio V, Bellini T (1986) Opt Commun 58:400CrossRefGoogle Scholar
  10. 10.
    Guering P, Cazabat AM (1983) J Phys Lett, Paris 44:601; Eicke H-F, Hilfiker R, Thomas H (1985) Chem Phys Lett 120:272Google Scholar
  11. 11.
    Pyzuk W (1980) Chem Phys 50:281; Pyzuk W, Majgier-Baranowska H, Ziolo J (1981) Chem Phys 59:111CrossRefGoogle Scholar
  12. 12.
    Goulon J, Greffe JL, Oxtoby DW (1979) J Chem Phys 70:4742; Hoye JS, Stell G (1984) J Chem Phys 81:3200CrossRefGoogle Scholar
  13. 13.
    Corti M, Degiorgio V (1981) J Phys Chem 85:1442; Corti M, Minero C, Degiorgio V (1984) J Phys Chem 88:309CrossRefGoogle Scholar
  14. 14.
    Nilsson PG, Wennerström H, Lindman B (1983) J Phys Chem 87:1377; Cebula DJ, Ottewill RH (1982) Coll & Polym Sci 260:1118; Triolo R, Magid LJ, Johnson JS, Child HR (1982) J Phys Chem 86:3689; Almgren M, Löfroth J (1984) In: Mittal KL, Lindman B (eds) Surfactant in Solution, Plenum, New York, p 627; Strey R, Pakusch A (1987) In: Mittal KL, Bothorel P (eds) Surfactants in Solution, Plenum, New York, to be published; Kato T, Seimiya T (1986) J Phys Chem 90:3159CrossRefGoogle Scholar
  15. 15.
    Peterlin V, Stuart HA (1939) Z Physik 112:129; O'Konski CT, Krause S (1976) In: O'Konski CT (ed) Electro-Optics, Dekker, New York, p 63CrossRefGoogle Scholar
  16. 16.
    Zulauf M, Weckström K, Hayter JB, Degiorgio V, Corti M (1985) J Phys Chem 89:3411CrossRefGoogle Scholar
  17. 17.
    Zana R, Weill C (1985) J Phys Lett, Paris 46:953Google Scholar
  18. 18.
    Israelachhvili JN, Mitchell DJ, Ninham BW (1976) J Chem Soc Faraday Trans II, 72:1525CrossRefGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1987

Authors and Affiliations

  1. 1.Dipartimento di Elettronica-Sezione die Fisica ApplicataUniversità di PaviaPaviaItaly

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