SOME ASPECTS OF POSITRONIUM INTERACTION WITH ELEMENTARY FREE VOLUMES IN POLYMERS |
| V.P. Shantarovich Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygin str., 117334, Moscow, Russia |
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| This paper contains a discussion of original and recently published results on positronium annihilation lifetime studies of elementary free volumes in the group of polymer glasses. The results are used for indication of non-homogeneity of these materials and give some basis for considering a connection of the long-lived component intensities I3(I4) with concentrations N3(N4) of elementary free volumes and, in this way, with fractional free volume. |
| DOI: 10.12693/APhysPolA.99.487 PACS numbers: 78.70.Bj |