| Numéro |
J. Phys. IV France
Volume 10, Numéro PR7, May 2000
International Workshop on Dynamics in Confinement
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|---|---|---|
| Page(s) | Pr7-317 - Pr7-320 | |
| DOI | https://doi.org/10.1051/jp4:2000764 | |
International Workshop on Dynamics in Confinement
J. Phys. IV France 10 (2000) Pr7-317-Pr7-320
DOI: 10.1051/jp4:2000764
1 Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan
2 Chiba Institute of Technology, Narashino, Chiba-ken 275-0023, Japan
3 Polymer Institute of the Slovak Academy of Science, 84236 Bratislava, Slovakia
4 Institute of Physics of the Slovak Academy of Science, 84236 Bratislava, Slovakia
© EDP Sciences 2000
J. Phys. IV France 10 (2000) Pr7-317-Pr7-320
DOI: 10.1051/jp4:2000764
Heterogeneity of amorphous polymers as studied by quasielastic neutron scattering in positron annihilation lifetime spectroscopy
T. Kanaya1, I. Tsukushi2, K. Kaji1, J. Bartos3 and J. Kristiak41 Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan
2 Chiba Institute of Technology, Narashino, Chiba-ken 275-0023, Japan
3 Polymer Institute of the Slovak Academy of Science, 84236 Bratislava, Slovakia
4 Institute of Physics of the Slovak Academy of Science, 84236 Bratislava, Slovakia
Abstract
It is believed that a key to understand anomalous dynamics of glass-forming materials is dynamic heterogeneity. In this report we evaluate the spatial size of the heterogeneity of glass-forming polybutadiene on the basis of the quasielastic neutron scattering and positron annihilation lifetime spectroscopy data and compare it with the reported data. We propose an empirical relation of the spatial scale between the cooperatively arranging region CRR in the supercooled state and the Boson peak in the glassy state.
© EDP Sciences 2000