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Title: Influence of temperature and pressure on the free volume in thermo-shrunken polyethylene by positron annihilation
Authors: Danch, Adam
Osoba, Wojciech
Wawryszczuk, J.
Keywords: stany pozytonowe; anihilacja pozytonów
Issue Date: 2008
Citation: Acta Physica Polonica A, Vol. 113, nr 5 (2008), s. 1307-1313
Abstract: Positron lifetime measurements were performed as a function of temperature and pressure for thermo-shrunken polyethylene. Mean volume of free volume cavities in the investigated polymer was estimated from the results of the measurements. This mean volume turned out to be the smooth function of temperature (from room temperature to 8.5 K) and high pressure (from 0.1 MPa to about 500 MPa). The effect of trapping of the free electrons produced during positron irradiation was observed at low temperature.
ISSN: 0587-4246
Appears in Collections:Artykuły (WNŚiT)

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