Determination of the Bonding State of the Modified Surface of Polyetheretherketone by the Principal Component Analysis of X-Ray Photoelectron C 1s Spectra.

Autor: Beshenkov, V. G., Pestov, S. M.
Zdroj: Journal of Surface Investigation: X-Ray, Synchrotron & Neutron Techniques; Jan2021, Vol. 15 Issue 1, p46-51, 6p
Abstrakt: Principal component analysis in a dual formulation is proposed to interpret changes in the C 1s X‑ray photoelectron spectra, arising from modification of the surface of polyetheretherketone. The distribution of the spectral intensities considered together with the spectra on dual graphs is used to construct a model of the peak structure of the C 1s spectra for their subsequent decomposition into components. It is shown that after treatment of the surface of polyetheretherketone with accelerated ion and neutral beams of argon-atom clusters, 288.3- and 285.5-eV peaks appear in the C 1s spectra, which characterize the presence of carboxyl functional groups and aliphatic carbon atoms in the modified surface layer. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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