THE DEPENDENCE OF THE GLASS TEMPERATURE OF 2 POLYMERIC GLASSES ON ENERGY DENSITY TESTED BY PRESSURE VARIATIONS

Authors
PIETRALLA M MAYR P WEISHAUPT K
Citation
M. Pietralla et al., THE DEPENDENCE OF THE GLASS TEMPERATURE OF 2 POLYMERIC GLASSES ON ENERGY DENSITY TESTED BY PRESSURE VARIATIONS, Journal of non-crystalline solids, 195(1-2), 1996, pp. 199-202
Citations number
7
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of non-crystalline solids → ACNP
ISSN journal
00223093
Volume
195
Issue
1-2
Year of publication
1996
Pages
199 - 202
Database
ISI
SICI code
0022-3093(1996)195:1-2<199:TDOTGT>2.0.ZU;2-B
Abstract
A recently discussed relation between thermal energy at the glass tran sition temperature and the kinetic energy of sound waves has been exam ined. The transition temperature and the sound velocity of the polymer ic glasses polycarbonate and poly(methyl-mechacrylate) have been chang ed by pressure variations up to 600 MPa. The result fits to the propos ed relation. The masses involved are found to be the at least partly i ndependent mobile parts of the complex molecules.