TY - JOUR
T1 - Plasmons as the primary mechanism of ion-induced modifications in polymers
AU - Moliton, J. P.
AU - Jussiaux-Devilder, C.
AU - Trigaud, T.
AU - Lazzaroni, R.
AU - Bredas, Jean-Luc
AU - Kihn, Y.
AU - Sevely, J.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - The phenomena that lead to modifications of polyimide, polycarbonate and polyparaphenylene irradiated by an ion beam in the 100 keV energy range are studied. A model of energy transfer based on plasmon-like collective effects occurring during the physical stage of the ion-polymer interaction, previously implemented for poly(methyl methacrylate) and cellulosic derivatives, is extended to these polymers. In the framework of this model, we carry out quantum-chemical calculations of the valence-band density of electronic states. The resulting theoretical spectrum is then compared with the experimental plasmon line obtained by electron-energy-loss spectrometry. This approach sheds light on the selective bond cleavages induced by the energy transfer at the primary physical step of the ion-polymer interaction.
AB - The phenomena that lead to modifications of polyimide, polycarbonate and polyparaphenylene irradiated by an ion beam in the 100 keV energy range are studied. A model of energy transfer based on plasmon-like collective effects occurring during the physical stage of the ion-polymer interaction, previously implemented for poly(methyl methacrylate) and cellulosic derivatives, is extended to these polymers. In the framework of this model, we carry out quantum-chemical calculations of the valence-band density of electronic states. The resulting theoretical spectrum is then compared with the experimental plasmon line obtained by electron-energy-loss spectrometry. This approach sheds light on the selective bond cleavages induced by the energy transfer at the primary physical step of the ion-polymer interaction.
UR - http://www.scopus.com/inward/record.url?scp=0032650721&partnerID=8YFLogxK
U2 - 10.1080/13642819908205750
DO - 10.1080/13642819908205750
M3 - Article
AN - SCOPUS:0032650721
SN - 1364-2812
VL - 79
SP - 793
EP - 815
JO - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
JF - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
IS - 5
ER -