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Electron-beam irradiation effects on poly(ethylene-co-vinyl acetate) polymer

Kumar, Harish HG and Mathad, RD and Sarma, KSS and Sanjeev, Ganesh and Haramagatti, CR (2011) Electron-beam irradiation effects on poly(ethylene-co-vinyl acetate) polymer. In: Radiation Effects and Defects in Solids, 166 (3). pp. 198-207.

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Official URL: http://www.informaworld.com/smpp/content~db=all?co...

Abstract

Poly(ethylene-co-vinyl acetate) (EVA) films were irradiated with a 1.2MeV electron beam at varied doses over the range 0-270kGy in order to investigate the modifications induced in its optical, electrical and thermal properties. It was observed that optical band gap and activation energy of EVA films decreased upon electron irradiation, whereas the transition dipole moment, oscillator strength and number of carbon atoms per cluster were found to increase upon irradiation. Further, the dielectric constant, the dielectric loss, and the ac conductivity of EVA films were found to increase with an increase in the dose of electron radiation. The result further showed that the thermal stability of EVA film samples increased upon electron irradiation.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Keywords: radiochemistry; polymers; TGA; electron beam; EVA; optical properties
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 07 Mar 2011 11:56
Last Modified: 07 Mar 2011 11:56
URI: http://eprints.iisc.ernet.in/id/eprint/35873

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