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Octadecylphosphonic Acid Self-Assembled Monolayers as Lubricant Coatings Stable in Alkaline Media

Published online by Cambridge University Press:  01 February 2011

J. Soullier ,
P. Tordjeman  and
P. H. Mutin
J. Soullier
Affiliation:
Laboratoire d'Analyse des Interfaces et de Nanophysique, UMR CNRS 5011, Université Montpellier 2, place Eugène Bataillon, 34095 Montpellier Cedex 5, France Chimie Moléculaire et Organisation du Solide, UMR CNRS 5637, Université Montpellier 2, place Eugène Bataillon, 34095 Montpellier Cedex 5, France
P. Tordjeman
Affiliation:
Laboratoire d'Analyse des Interfaces et de Nanophysique, UMR CNRS 5011, Université Montpellier 2, place Eugène Bataillon, 34095 Montpellier Cedex 5, France
P. H. Mutin
Affiliation:
Chimie Moléculaire et Organisation du Solide, UMR CNRS 5637, Université Montpellier 2, place Eugène Bataillon, 34095 Montpellier Cedex 5, France
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Abstract

The formation of octadecylphosphonic acid self-assembled monolayers (SAMs) on titanium deposited by cathodic sputtering on planar substrates has been studied by water contact angle measurements and Atomic Force Microscopy (AFM). Dense monolayers were obtained after one week of reaction. Tribological experiments indicated that these monolayers had good lubricating properties, which were maintained after immersion in a 1 M NaOH solution at 65 °C for up to 100 min. The stability in alkaline media of octadecylphosphonic acid SAMs on titanium was ascribed to the high chemical stability of Ti-O-P interfacial bonds.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 847: Symposium EE – Organic/Inorganic Hybrid Materials , 2004 , EE13.28
Copyright
Copyright © Materials Research Society 2005

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References

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