Effect of dissolved small molecules on the mechanical relaxation behavior of polycarbonate

Authors
Bohm, I Brion, HG Kirchheim, R
Citation
I. Bohm et al., Effect of dissolved small molecules on the mechanical relaxation behavior of polycarbonate, POLYMER, 41(17), 2000, pp. 6613-6617
Citations number
15
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
41
Issue
17
Year of publication
2000
Pages
6613 - 6617
Database
ISI
SICI code
0032-3861(200008)41:17<6613:EODSMO>2.0.ZU;2-K
Abstract
After sorption of gas molecules (CO2, C2H4) in polycarbonate, a new damping peak appears and the intrinsic gamma-relaxation is depressed. The new peak increases in intensity and shifts to lower temperature with increasing gas concentration. This relaxation could be attributed to jumps of the gas mol ecules inside the polymer matrix similar to the Snoek relaxation of carbon in alpha-iron. (C) 2000 Elsevier Science Ltd. All rights reserved.