Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1485882 | Journal of Non-Crystalline Solids | 2006 | 5 Pages |
Abstract
We report dielectric relaxation measurements of the mixture 25%Â w/w cyclohexane in decahydroisoquinoline. Cyclohexane is a non-polar liquid that acts as an external parameter influencing relaxation dynamics of pure decahydroisoquinoline. Two different secondary relaxation processes dominate the relaxation dynamics below the glass transition temperature, as previously observed in the pure decahydroisoquinoline. Based on the coupling model analysis we identified the fastest secondary process as the genuine secondary Johari Goldstein process, reflecting the motion of the whole molecule. On the other hand, the microscopic origin of the slowest secondary process still remains unknown.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
D. Prevosto, S. Capaccioli, P.A. Rolla, M. Paluch, S. Pawlus, S. Hensel-Bielowka, E. Kaminska,