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Positron annihilation lifetime studies of free volume changes in polycarbonate under static tensile deformation

โœ Scribed by Ruan, M. Y.; Moaddel, H.; Jamieson, A. M.; Simha, R.; McGervey, J. D.


Book ID
126788164
Publisher
American Chemical Society
Year
1992
Tongue
English
Weight
561 KB
Volume
25
Category
Article
ISSN
0024-9297

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Ah&met-The method of positron annihilation was used to study changes of free volume in polycarbonate. Annealing at 180ยฐC and pressure 808 MPa causes significant changes of free volume (-23%) compared to nonannealed polycarbonate. The free volume compressibility was estimated to be -3.10-' MPa-'. The