Hydrogen at Polymer Surfaces
- Institute of Physics Academy of Sciences of the Czech Republic, Cukrovarnicka 10, 162 53 Prague 6 (Czech Republic)
- Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warszawa (Poland)
We present a relatively simple method for analyzing H content on surfaces of selected commercially available polymers, i.e. polyethylene, polypropylene, polystyrene, and poly(methylphenylsilylene). The applied method, i.e. the Elastic Peak Electron Spectroscopy (EPES), is based on quasi-elastic scattering of primary beam electrons with atoms of solid sample constituents. Electron energy, scattering angle and difference between electron mass and atomic mass of sample constituents induces an electron recoil energy loss. Recoil effect results of splitting the elastic peak into components, by their energy shifting and broadening. For above-mentioned polymers, the EPES method indicates the surface H content close to the nominal composition. Sampling depth of the method does not exceed inelastic mean free path of electrons used in the scattering experiment. Therefore, the technique is useful to monitor H surface content during or after various surface modifications as UV, electron and ion beam modification of polymer surfaces or surface plasma treatments. Limitations of the technique are mentioned.
- OSTI ID:
- 21407857
- Journal Information:
- AIP Conference Proceedings, Vol. 1255, Issue 1; Conference: 5. international conference on times of polymers (TOP) and composites, Ischia (Italy), 20-23 Jun 2010; Other Information: DOI: 10.1063/1.3455604; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
ELECTRIC CONDUCTIVITY
ELECTRONS
ENERGY LOSSES
HYDROGEN
ION BEAMS
MEAN FREE PATH
PHOTOELECTRON SPECTROSCOPY
POLYETHYLENES
POLYPROPYLENE
POLYSTYRENE
QUASI-ELASTIC SCATTERING
BEAMS
DIRECT REACTIONS
ELECTRICAL PROPERTIES
ELECTRON SPECTROSCOPY
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
LEPTONS
LOSSES
MATERIALS
NONMETALS
NUCLEAR REACTIONS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
POLYMERS
POLYOLEFINS
POLYVINYLS
QUASI-FREE REACTIONS
SCATTERING
SPECTROSCOPY
SYNTHETIC MATERIALS