期刊
PLASMA PROCESSES AND POLYMERS
卷 16, 期 4, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ppap.201800160
关键词
chemical derivatization; imine groups; trifluoroacetic anhydride (TFAA); trifluorbenzaldehyde (TFBA); X-ray photoelectron spectroscopy (XPS)
资金
- Austrian Research Promotion Agency FFG
- Government of Lower Austria
- Government of Upper Austria
The chemical reaction of imine groups with vapors of trifluoroacetic anhydride (TFAA) was investigated in detail with X-ray photoelectron spectroscopy (XPS) for the potential application in chemical derivatization (CD) studies of plasma treated surfaces. Imine groups were at first prepared by converting surface amine groups of a polymer precursor using a common vapor phase derivatization reaction with fluorine tagged aldehydes and ketones. The originally low yield for the imine forming reaction of approx. 50%, performed under standard conditions was dramatically enhanced up to 100% by an own developed procedure using a catalyst. This step allowed to obtain a consistent quantification and interpretation of the complex surface reaction products from different types of imine groups derivatized by TFAA.
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