Electron-beam-induced conduction in fluorinated ethylene propylene copolymer and its acrylonitrile graft copolymer

Abstract Electron‐beam‐induced conductivity (EBIC) studies were carried out on fluorinated ethylene propylene copolymer (FEP) and its acrylonitrile graft copolymer (FEP‐g‐AN). The current transport parallel to the surface under the influence of an electron beam of medium energy (6–30 keV) is reporte...

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Bibliographic Details
Published in:Journal of polymer science. Polymer physics edition 1983-05, Vol.21 (5), p.685-697
Main Authors: Joshi, S. G., Ghatge, N. D., Jog, J. P., Walzade, S. J., Bhoraskar, S. V.
Format: Article
Language:English
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Summary:Abstract Electron‐beam‐induced conductivity (EBIC) studies were carried out on fluorinated ethylene propylene copolymer (FEP) and its acrylonitrile graft copolymer (FEP‐g‐AN). The current transport parallel to the surface under the influence of an electron beam of medium energy (6–30 keV) is reported. The gain in EBIC is calculated and its characteristic variation as a function of beam energy is studied. Minima in the gain versus energy curves have been obtained around 21 keV for FEP, 12 and 18 keV for FEP‐g‐AN, and 12 keV for polyacrylonitrile (PAN). This behavior is explained by assuming the existence of electron trapping bands close to the surface, at characteristic distances below the surface of the polymeric film corresponding to the range of incident electrons. Gains of the order of 5, 12, and 30 have been obtained respectively for FEP, FEP‐g‐AN, and PAN for the maximum energy of incident electrons used.
ISSN:0098-1273
1542-9385
DOI:10.1002/pol.1983.180210502