Effect of experimental conditions on the oscillatory adsorption of propyltrimethoxysilane on aluminum oxide surfaces

J. S. Quinton, P. C. Dastoor

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The adsorption of propyltrimethoxysilane (PTMS) dip-coated onto aluminum oxide substrates has been studied using X-ray photoelectron spectroscopy (XPS). In particular, the influence of solution pH and PTMS concentration upon the initial rate of adsorption has been investigated. While the phenomenon of oscillatory adsorption is observed for all of the experimental conditions investigated, the pH and concentration of the PTMS solution have a significant influence upon the dipping time required to reach the first maximum in surface coverage. The dependence of the observed oscillatory adsorption upon these experimental parameters is consistent with the adsorption mechanism for this system previously described by the authors.

Original languageEnglish
Pages (from-to)131-137
Number of pages7
JournalApplied Surface Science
Volume152
Issue number3-4
DOIs
Publication statusPublished - 2 Nov 1999
Externally publishedYes

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