Fast process in glass-forming polymers and its relation to mechanical properties

Authors
Kanaya, T Hansen, J Tsukushi, I Nishida, K Kaji, K Yamamuro, O Tanaka, K Yamaguchi, A
Citation
T. Kanaya et al., Fast process in glass-forming polymers and its relation to mechanical properties, J PHYS CH S, 60(8-9), 1999, pp. 1321-1323
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN journal
00223697 → ACNP
Volume
60
Issue
8-9
Year of publication
1999
Pages
1321 - 1323
Database
ISI
SICI code
0022-3697(199908/09)60:8-9<1321:FPIGPA>2.0.ZU;2-0
Abstract
We report the quasielastic neutron scattering results on an amorphous polyi mide below the glass transition temperature T-g (= 523 K). The so-called fa st process in picosecond order has been observed far below T-g. We also per formed dynamic mechanical measurements at 10 Hz to find that the beta-relax ation temperature is close to the onset temperature of the fast process alt hough the difference in the frequencies in both the measurements are more t han similar to 10(10) Hz. (C) 1999 Elsevier Science Ltd. All rights reserve d.