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Determining weathering-induced heterogeneous oxidation profiles of polyethylene, polypropylene and polystyrene using laser-induced breakdown spectroscopy

Title data

Sommer, Caroline ; Nguyen, Johnny ; Menzel, Teresa ; Ruckdäschel, Holger ; Koch, Martin:
Determining weathering-induced heterogeneous oxidation profiles of polyethylene, polypropylene and polystyrene using laser-induced breakdown spectroscopy.
In: Chemosphere. Vol. 343 (2023) . - 140105.
ISSN 1879-1298
DOI: https://doi.org/10.1016/j.chemosphere.2023.140105

Project information

Project title:
Project's official title
Project's id
SFB 1357 Mikroplastik
391977956

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Weathering-induced polymer degradation is typically heterogeneous which plays an integral part in fragmentation. Despite that, the current selection of techniques to investigate such heterogeneities, especially beneath the sample surface, is sparse. We introduce Laser-induced Breakdown Spectroscopy (LIBS) as an analytical tool and evaluate its performance for depth profiling. Three types of polymers were selected (polyethylene, polypropylene, and polystyrene) that were aged under controlled conditions. We demonstrate that LIBS can detect heterogeneous oxidation on the surface and inside the samples. The results reveal that different oxidation behaviors are linked to the sample's lattice structure and the subsequent formation of microcracks. This implies that LIBS is beneficial to give additional insights into the weathering and degradation behavior of environmentally relevant plastics.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Polymer Materials
Faculties > Faculty of Engineering Science > Chair Polymer Materials > Chair Polymer Materials - Univ.-Prof. Dr.-Ing. Holger Ruckdäschel
Profile Fields > Advanced Fields > Polymer and Colloid Science
Research Institutions > Collaborative Research Centers, Research Unit > SFB 1357 - MIKROPLASTIK
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 530 Physics
500 Science > 540 Chemistry
Date Deposited: 05 Oct 2023 05:21
Last Modified: 05 Oct 2023 05:21
URI: https://eref.uni-bayreuth.de/id/eprint/87039