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Temperature-dependent domain growth in 9-hydroxypalmitic acid monolayers

  • S. Siegel
  • D. VollhardtEmail author
Conference paper
Part of the Progress in Colloid and Polymer Science book series (PROGCOLLOID, volume 121)

Abstract

The surface pressure—molecular area isotherms and the texture features of 9-hydroxyhexa-decanoic acid monolayers are studied using the film-balance technique and Brewster-angle microscopy. In the two-phase coexistence region, homogeneously reflecting condensed-phase domains of a regular shape are formed. The 9-hydroxy-hexadecanoic acid monolayers show an unusual low, but linear, increase in the transition pressure with temperature and striking shape changes of the condensed-phase domains at different temperatures. The features of the monolayer are drastically changed by alkyl chain substitution by an OH group at the 9-position. The morphological features indicate molecular packing of nontilted alkyl chains in an orthorhombic and hexagonal lattice, respectively. OH substitution at different positions of the alkyl chain affects strongly and in a different way both the phase behaviour and the domain texture of the nonsubstituted palmitic acid monolayers.

Key words

Monolayer Brewster-angle microscopy Hydroxyhexadecanoic acid Surface pressure 

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References

  1. 1.
    Vollhardt D (1996) Adv Colloid Interface Sci 64:143CrossRefGoogle Scholar
  2. 2.
    Vollhardt D (2001) In: Hubbard A (ed) Encyclopedia of surface and colloid science. Dekker, New York, pp (in press)Google Scholar
  3. 3.
    Kellner BM, Cadenhead DA(1978) J Colloid Interface Sci 63:452CrossRefGoogle Scholar
  4. 4.
    Kellner BM, Cadenhead DA (1979) Chem Phys Lipids 23:41CrossRefGoogle Scholar
  5. 5.
    Matuo H, Rice DK, Balthasar DM, Cadenhead DA (1982) Chem Phys Lipids 30:367CrossRefGoogle Scholar
  6. 6.
    Asgharian B, Cadenhead DA (2000) Langmuir 16:677CrossRefGoogle Scholar
  7. 7.
    Krasteva N, Vollhardt D, Brezesinski G (2000) J Phys Chem 104:8704Google Scholar
  8. 8.
    Weidemann G, Brezesinski G, Vollhardt D, DeWolf C, Möhwald H (1999) Langmuir 15:2901CrossRefGoogle Scholar
  9. 9.
    Weidemann G, Brezesinski G, Vollhardt D, Möhwald H (1998) Langmuir 14:6485CrossRefGoogle Scholar
  10. 10.
    Gutberlet T, Vollhardt D(1995) J Colloid Interface Sci 173:429CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  1. 1.Max-Planck-Institut für Kolloid- und GrenzflächenforschungForschungscampus GolmPotsdamGermany

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