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Per Persson. Photo.

Per Persson

Director

Per Persson. Photo.

Comparison of monolayer films of stearic acid and methyl stearate on an Al2O3 surface

Author

  • K. Oberg
  • Per Persson
  • A. Shchukarev
  • B. Eliasson

Summary, in English

Both stearic acid and methyl stearate chemisorbs onto an oxide surface of aluminum with an asymmetric coordination of the carboxylate group as concluded from infrared (IR) spectroscopy data. Similarities in the IR spectra of the films from the two compounds suggest that the ester is bonded in the same way as the acid, and that the ester therefore undergoes hydrolysis during the surface reaction. X-Ray photoelectron spectroscopy (XPS) and IR data are interpreted in terms of self-assembled monolayer formation and a more dense film from the carboxylic acid in comparison with that from the ester. (C) 2001 Elsevier Science B.V. All rights reserved.

Publishing year

2001

Language

English

Pages

102-108

Publication/Series

Thin Solid Films

Volume

397

Document type

Journal article

Publisher

Elsevier

Topic

  • Earth and Related Environmental Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 0040-6090