Poly(L-lactic acid), by near-ambient pressure XPS
- Near ambient pressure - x-ray photoelectron spectroscopy (NAP-XPS) is a less traditional form of XPS that allows samples to be analyzed at relatively high pressures, i.e., at 2500Pa or higher. With NAP-XPS, one can analyze moderately volatile liquids, biological samples, porous materials, and/or polymeric materials that outgas significantly. In this submission we show C 1s, O 1s, and survey NAP-XPS spectra from poly(L-lactic acid). The C 1s and O 1s envelopes were fit with three and two Gaussian-Lorentzian sum functions, respectively. Water vapor (800Pa) was used as the residual gas for charge compensation, which was confirmed by the sharp peak at 535.0 eV in the O 1s narrow scan. The uniqueness plot corresponding to the C 1s fit shows that the fit parameters had statistical significance. C 1s and O 1s spectra of PLLA damaged by exposure to x-rays for ca. 1 hour are also included. Published by the AVS.
| Author details: | Dhananjay I. Patel, Sebastian NoackORCiDGND, Charlotte D. VacogneORCiDGND, Helmut SchlaadORCiDGND, Stephan BahrGND, Paul DietrichORCiDGND, Michael Meyer, Andreas ThissenGND, Matthew R. LinfordORCiD |
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| DOI: | https://doi.org/10.1116/1.5110309 |
| ISSN: | 1055-5269 |
| ISSN: | 1520-8575 |
| Title of parent work (English): | Surface Science Spectra |
| Publisher: | American Institute of Physics |
| Place of publishing: | Melville |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2019 |
| Publication year: | 2019 |
| Release date: | 2020/09/30 |
| Tag: | NAP-XPS; Water Vapor; XPS; near-ambient pressure X-ray photoelectron spectroscopy |
| Volume: | 26 |
| Issue: | 2 |
| Number of pages: | 8 |
| Funding institution: | [SN-S 101] |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Peer review: | Referiert |
