Reorientational motions of dipolar solutes in glassy o-terphenyl
- 15 November 1979
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 71 (10) , 4095-4098
- https://doi.org/10.1063/1.438179
Abstract
The low frequency (102–105 Hz) dielectric relaxation behavior of small dipolar molecules dispersed in supercooled o‐terphenyl has been studied below the glass transition temperature. Broad asymmetric loss curves are obtained for both rigid and nonrigid solute molecules. The relaxation times and Eyring activation enthalpies for molecular and intramolecular group reorientation processes are compared with the analogous values for the same solutes in a polystyrene matrix.Keywords
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