X-ray Diffraction Studies of the Effects of Ca2+ and Cu2+ on Langmuir Monolayers of Heneicosanoic Acid

B. Lin, T. M. Bohanon, M. C. Shih, P. Dutta

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


We have used synchrotron radiation to study the highest pressure phase of Langmuir monolayers of heneicosanoic acid in the presence of copper and calcium ions in the subphase. We see structural changes as a function of pH, correlated with previously reported changes in the chemical composition of the monolayers. The diffraction data show the same trends in both cases, except at pH values near the hydroxide precipitation regions.

Original languageEnglish (US)
Pages (from-to)1665-1667
Number of pages3
Issue number11
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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