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Examples for CD-XPS |
Plasma treated polymer surfaces are chemically very heterogeneous what renders the
analysis of the chemical structure very complicated. The identification and
determination of particular functional groups can be improved greatly by the use
of specific reactions, so called derivatizations. This principle can be applyed to
a number of instrumnetal methods. In combination with XPS, a derivatization
reaction introduces atoms which have not been on the analyzed surface before
(see reaction schemes). With IR spectroscopy the derivatization can help to
identify secondary structures. The specific coupling of long alkyl chains in
combination with contact angle goniometry permits a very senstive detection of the
coupling group. Even fluorescence labelling is a kind of derivatization.