Effect of pressure on dynamic heterogeneity in dendrimeric alkyd resin.

Autor: Paluch, M., Sekula, M., Maślanka, S., Mańczyk, K., Sulkowski, W.W., Rzoska, S.J., Ziolo, J.
Předmět:
Zdroj: Journal of Chemical Physics; 1/22/2004, Vol. 120 Issue 4, p2020-2025, 6p, 2 Diagrams, 2 Charts, 6 Graphs
Abstrakt: Broadband dielectric spectroscopy is employed to investigate the non-Debye relaxation behavior in a dendrimeric alkyd resin. From temperature-dependent measurements at ambient pressure, we found a very broad distribution of relaxation times. This is attributed to the complex geometrical topology of the molecule. However, compression significantly reduces the non-Debye character of the dielectric response; thus, pressure induces dynamic homogeneity in the dendrimeric alkyd resin. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index