Comparison of Self-Assembled Monolayers on Gold: Coadsorption of Thiols and Disulfides

Abstract

Ordered, organic monolayers were formed on gold slides by adsorption from ethanol of HS(CH2)10CH2OH, HS(CH2)10CH3, S(CH2)10CH2OH2, S(CH2)10Ch32, and of binary mixtures of these molecules in which one component was terminated by a hydrophobic methyl group and one by a hydrophilic alcohol group. The compositions of the monolayers were determined by X-ray photoelectron spectroscopy (XPS). Wettability was used as a probe of the chemical composition and structure of the surface of the monolayer. When monolayers were formed in solutions containing mixtures of a thiol and a disulfide, adsorption of the thiol was strongly preferred (approx. 75:1). Monolayer, Gold, Surface, Contact angles, Thiols, Disulfides.

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Document Details

Document Type
Technical Report
Publication Date
Feb 15, 1989
Accession Number
ADA204826

Entities

People

  • Colin D. Bain
  • George M. Whitesides
  • Hans A. Biebuyck

Organizations

  • Harvard University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Adsorption
  • Alkanes
  • Chemistry
  • Classification
  • Films
  • Governments
  • Hydrophobic Properties
  • Materials
  • Materials Science
  • Military Research
  • Molecules
  • Monomolecular Films
  • Security
  • Self Assembled Monolayers
  • Spectroscopy
  • X Rays

Fields of Study

  • Chemistry

Readers

  • Electrochemical Surface Science
  • Materials Science and Engineering.

Technology Areas

  • Microelectronics