The influence of deformation and chemical composition on elementary free volumes in glassy polymers

Authors
Shantarovich, VP Novikov, YA Suptel, ZK Oleinik, EF Boyce, MC
Citation
Vp. Shantarovich et al., The influence of deformation and chemical composition on elementary free volumes in glassy polymers, ACT PHY P A, 95(4), 1999, pp. 659-662
Citations number
7
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA A
ISSN journal
05874246 → ACNP
Volume
95
Issue
4
Year of publication
1999
Pages
659 - 662
Database
ISI
SICI code
0587-4246(199904)95:4<659:TIODAC>2.0.ZU;2-P
Abstract
A relation between positronium annihilation characteristics and concentrati on of elementary free volumes is considered for the case of positronium for mation before its localization. We estimated the diffusion coefficient of n onlocalized positronium (approximate to 10(-4) cm(2)/s). The positron annih ilation lifetime studies of uniaxial compression and annealing of some glas sy polymers revealed variations of the shape of elementary free volumes siz e-distributions.