Derivatization of amino groups by pentafluorobenzaldehyde (PFB) as observed by XPS and NEXAFS spectroscopy on spin coated 4,4′-methylenebis(2,6-diethylaniline) films
Article first published online: 20 FEB 2008
Copyright © 2008 John Wiley & Sons, Ltd.
Surface and Interface Analysis
Special Issue: Papers Presented at ECASIA'07: The 12th European Conference on Applications of Surface and Interface Analysis, Brussels, Belgium, 9–14 September 2007
Volume 40, Issue 3-4, pages 176–179, March - April 2008
How to Cite
Yegen, E., Lippitz, A., Treu, D. and Unger, W. E. S. (2008), Derivatization of amino groups by pentafluorobenzaldehyde (PFB) as observed by XPS and NEXAFS spectroscopy on spin coated 4,4′-methylenebis(2,6-diethylaniline) films. Surf. Interface Anal., 40: 176–179. doi: 10.1002/sia.2685
- Issue published online: 20 MAR 2008
- Article first published online: 20 FEB 2008
- Manuscript Accepted: 7 NOV 2007
- Manuscript Revised: 5 NOV 2007
- Manuscript Received: 14 AUG 2007
- amino groups;
A toluene solution of 4,4′-methylenebis(2,6-diethylaniline) was spin coated on Si wafers. The samples were derivatized with pentafluorobenzaldehyde (PFB) in order to determine the primary amino groups on the surface. XPS C 1s and N 1s and C and N K-edge NEXAFS of underivatized and derivatized films were carefully analyzed. The result was that after 10 min of exposure the gas–surface reaction was already completed. A reasonable derivatization reaction yield in the order of 90% is derived from the experiments. This number correlates well to a reaction yield obtained by a wet chemical approach. Copyright © 2008 John Wiley & Sons, Ltd.