FLUORESCENCE INVESTIGATION OF SOME POLYSTYRENE SAMPLES THERMALLY DEGRADED

Authors

  • Carmen NICULAESCU ”Babes-Bolyai” University, Faculty of Physics, M. Kogalniceanu No 1, 400084 Cluj-Napoca, Romania
  • Ioana BREZESTEAN ”Babes-Bolyai” University, Faculty of Physics, M. Kogalniceanu No 1, 400084 Cluj-Napoca, Romania. ioana.brezestean@itim-cj.ro https://orcid.org/0000-0001-6374-5155
  • Claudiu LUNG ”Babes-Bolyai” University, Faculty of Physics, M. Kogalniceanu No 1, 400084 Cluj-Napoca, Romania. claudiu.lung@ieec.utcluj.ro
  • Mihai TODICA ”Babes-Bolyai” University, Faculty of Physics, M. Kogalniceanu No 1, 400084 Cluj-Napoca, Romania. mihai.todica@phys.ubbcluj.ro

DOI:

https://doi.org/10.24193/subbphys.2018.02

Keywords:

polystyrene, thermal degradation, UV-VIS, fluorescence.

Abstract

The behavior of some samples of commercial polystyrene, thermally degraded, was investigated by UV-VIS and fluorescence methods. Excited with different wavelengths in the domain 315-365 nm, the spectra show a peak located at 409 nm. The amplitude and the shape of this peak change after thermal degradation. Minor changes appear at 200ºC, indicating relatively stability of the samples, but the modifications are more important at 350ºC. At that temperature the samples are affected by oxidation.

References

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STUDIA UBB PHYSICA, Volume 63 (LXIII), No. 1-2, December 2018

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Published

2018-12-30

How to Cite

NICULAESCU, C., BREZESTEAN, I., LUNG, C., & TODICA, M. (2018). FLUORESCENCE INVESTIGATION OF SOME POLYSTYRENE SAMPLES THERMALLY DEGRADED. Studia Universitatis Babeș-Bolyai Physica, 63(1-2), 19–26. https://doi.org/10.24193/subbphys.2018.02

Issue

Volume 63, No. 1-2, 2018

Section

Articles

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Copyright (c) 2018 Studia Universitatis Babeș-Bolyai Physica

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