Self-assembly and bonding of alkanephosphonic acids on the native oxide surface of titanium

Ellen S. Gawalt, Michael J. Avaltroni, Norbert Koch, Jeffrey Schwartz

Research output: Contribution to journalArticle

250 Scopus citations

Abstract

Alkanephosphonic acids assemble from solution on the native oxide surface of titanium to form alkane chain ordered films which, however, are easily removed by solvent rinse. In contrast, assembling the alkanephosphonic acid from solution on the native oxide surface of titanium followed by gentle heating gives an alkane chain ordered film of the acid which is strongly surface-bound; this film resists removal by solvent washing or simple mechanical peel testing. Surface imaging by atomic force microscopy shows comprehensive surface coverage by aggregated islands, with elevations of each consistent with monolayer formation. ω-Carboxyalkanephosphonic acids are also easily bound to the native oxide surface of Ti through self-assembly/heating. Infrared analysis is consistent with surface attachment through the phosphonate headgroup.

Original languageEnglish (US)
Pages (from-to)5736-5738
Number of pages3
JournalLangmuir
Volume17
Issue number19
DOIs
StatePublished - Sep 18 2001

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Self-assembly and bonding of alkanephosphonic acids on the native oxide surface of titanium'. Together they form a unique fingerprint.

  • Cite this