Approaches to quantify amine groups in the presence of hydroxyl functional groups in plasma polymerized thin films

Juan Carlos Ruiz*, Shima Taheri, Andrew Michelmore, David E. Robinson, Robert D. Short, Krasimir Vasilev, Renate Förch

*Corresponding author for this work

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The quantification of primary and secondary amines in plasma polymerized allylamine and plasma copolymers of allylamine/octadiene films was carried out using chemical derivatization followed by X-ray photoelectron spectroscopy. Data was analyzed using a combination of the peak-fit-analysis method (PFA) and the quantitativeelemental-analysis method (QEA). The latter method overestimates the secondary amine contribution, since it does not account for the additional reaction of TFAA with OH groups that may be present as a result of surface aging effects. In the current work the PFA method has been extended to enable the separation of-OH groups and secondary amines, thus allowing for a more precise determination of the secondary amine groups even after surface aging.

Original languageEnglish
Pages (from-to)888-896
Number of pages9
JournalSteel Research International
Volume11
Issue number9
DOIs
Publication statusPublished - Sep 2014
Externally publishedYes

Keywords

  • Allylamine
  • Amine derivatization
  • Octadiene
  • Trifluoroacetic anhydride
  • Trifluoromethylbenzaldehyde

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