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Title: Investigation of the temperature dependence of free volume in polymethylpentene by positron annihilation method
Authors: Danch, Adam
Osoba, Wojciech
Keywords: pozytrony; anihilacja pozytonów
Issue Date: 2005
Citation: Acta Physica Polonica A, Vol. 107, nr 5 (2005), s. 811-816
Abstract: Positron lifetime measurements in polymethylpentene were performer in a wide temperature range. A conventional fast-slow coincidence lifetime spectrometer with plastic scintillators was used. All the measurements were made in vacuum. Additional measurements (X-ray diffraction, differential scanning calorimetry, and mechanical spectroscopy) were also performed to establish properties of samples. Mean free volume radii in the investigated samples were estimated from the positron lifetimes measurements results. An increase in I3 with the elapsed time of measurements was observed.
ISSN: 0587-4246
Appears in Collections:Artykuły (WNŚiT)

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