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Title: Positron annihilation lifetime in situ study of deformed polyolefin elastomers
Authors: Krzemień, Krzysztof
Kansy, Jerzy
Frąckowiak, Janusz
Keywords: anihilacja pozytonów; pozytrony; polimery; elastomery
Issue Date: 2005
Citation: Acta Physica Polonica A, Vol. 107, nr 5 (2005), s. 837-841
Abstract: The positron annihilation lifetime spectroscopy was used to investigate the free volume hole size of ethylene octane copolymers as a function of deformation in the range from 0 to 110% in steps of 10%. For each degree of deformation a series of 5-6 positron annihilation lifetime spectra was collected in situ. All spectra of a given series were analysed simultaneously. They were resolved into three exponential components, of lifetimes parameters ¿i and intensities Ii. The variations of ¿3 reflect three deformation regions, the elastic range, strain softening range, and plastic region.
ISSN: 0587-4246
Appears in Collections:Artykuły (WNŚiT)

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