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2005 | 107 | 5 | 811-816

Article title

Investigation of the Temperature Dependence of Free Volume in Polymethylpentene by Positron Annihilation Method

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EN

Abstracts

EN
Positron lifetime measurements in polymethylpentene were performed 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 I_3 with the elapsed time of measurements was observed.

Keywords

EN

Contributors

author
  • Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.bwnjournal-article-appv107n514kz
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