TY - JOUR
T1 - Excimer laser (λ = 193 nm) versus AlKα X-Ray damages on polymer surfaces
T2 - an XPS (core and valence levels) analysis of polytetrafluoroethylene, polypropylene and polyethylene
AU - Pireaux, Jean-Jacques
AU - de Meulemeester, R.
AU - Roberfroid, E.M.
AU - Grégoire, Chantal
AU - Chtaïb, M.
AU - Novis, Yvan
AU - Riga, Joseph
AU - Caudano, Roland
PY - 1995
Y1 - 1995
N2 - The characterization of surface modifications of polymers, after irradiation with X-ray or UV photons, is abundant in the XPS literature, reporting from core level analysis the modification of surface chemical composition (loss of fluorine, or chlorine, or oxygen … content). This work focuses on the use of XPS valence band spectra to show that irradiation can lead to superficial structural modification — lateral chain grafting, or crosslinking — of so-called “reactive” (polytetrafluoroethylene) and even more “stable” (polypropylene and polyethylene) polymers: this is best evidenced by modification of the typical shape of the C2s valence band. This structural modification appears more pronounced for high fluence UV excimer laser irradiation in air, than for (more moderate) exposition to harder X-rays in vacuo.
AB - The characterization of surface modifications of polymers, after irradiation with X-ray or UV photons, is abundant in the XPS literature, reporting from core level analysis the modification of surface chemical composition (loss of fluorine, or chlorine, or oxygen … content). This work focuses on the use of XPS valence band spectra to show that irradiation can lead to superficial structural modification — lateral chain grafting, or crosslinking — of so-called “reactive” (polytetrafluoroethylene) and even more “stable” (polypropylene and polyethylene) polymers: this is best evidenced by modification of the typical shape of the C2s valence band. This structural modification appears more pronounced for high fluence UV excimer laser irradiation in air, than for (more moderate) exposition to harder X-rays in vacuo.
U2 - 10.1016/0168-583X(95)00548-X
DO - 10.1016/0168-583X(95)00548-X
M3 - Article
SN - 0168-583X
VL - 105
SP - 186
EP - 191
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
ER -