Compositional, structural and optical changes of polyimide irradiated by heavy ions

0461511 - ÚJF 2017 RIV US eng J - Journal Article
Mikšová, Romana - Macková, Anna - Cutroneo, Mariapompea - Slepička, P. - Matoušek, J.
Compositional, structural and optical changes of polyimide irradiated by heavy ions.
Surface and Interface Analysis. Roč. 48, č. 7 (2016), s. 566-569. ISSN 0142-2421. E-ISSN 1096-9918.
[16th European Conference on Applications of Surface and Interface Analysis (ECASIA). Granada, 28.09.2015-01.10.2015]
R&D Projects: GA MŠMT(CZ) LM2011019; GA ČR GA15-01602S
Institutional support: RVO:61389005
Keywords : polyimide * polymer degradation * swift heavy-ion irradiation * surface morphology
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 1.132, year: 2016

Polyimide (PI, (C22H10O5N2)(n)) foil, 8 mu m thick, was irradiated with 9.6-MeV C4+ and O4+ ions at fluences of 10(10)-10(13)cm(-2). Compositional and structural changes related to the ion species, ion irradiation fluence and the type of polymer were studied and discussed in connection with energy-loss measurement. The knowledge of these changes of polymers after the irradiation is very important for the estimation of the influence of these effects on the experimentally determined ion-energy losses. Rutherford back-scattering (RBS) and elastic recoil detection analysis (ERDA) were used for the elemental composition study, atomic force microscopy (AFM) for the detection of the changes in surface roughness and UV-Visible spectral study (UV-Vis) for variation in the absorbance and the optical band gap. The chemical and structural changes, new radical appearance, and polymeric chain crosslinking especially at ion fluencies above 10(13)cm(-2) were observed and discussed in the frame of energy stopping experimental determination.
Permanent Link: http://hdl.handle.net/11104/0261305