Abstract
We have measured the dielectric relaxation of several molecular organic supercooled liquids, ααβ-tris-naphthylbenzene (C36H24 and C36H10D14), squalane, and decahydroisoquinoline. The dynamics is studied in the frequency range 10−2–107 Hz, equivalent to temperatures between Tg and approximately 1.2×Tg. For the very low dielectric loss materials, a resolution of tan δ≈3×10−5 is required in order to observe the details of the relaxation behavior. Characteristic quantities like fragility, relaxation time dispersion, time–temperature superposition, and the slow Johari–Goldstein type β relaxation are among the properties discussed.
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Dates
Type | When |
---|---|
Created | 22 years, 7 months ago (Jan. 9, 2003, 11:40 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 7, 2024, 11:44 a.m.) |
Indexed | 1 month, 3 weeks ago (June 25, 2025, 9:29 p.m.) |
Issued | 22 years, 7 months ago (Jan. 22, 2003) |
Published | 22 years, 7 months ago (Jan. 22, 2003) |
Published Print | 22 years, 7 months ago (Jan. 22, 2003) |
@article{Richert_2003, title={Dynamics of glass-forming liquids. VII. Dielectric relaxation of supercooled tris-naphthylbenzene, squalane, and decahydroisoquinoline}, volume={118}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1531587}, DOI={10.1063/1.1531587}, number={4}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Richert, Ranko and Duvvuri, Kalyan and Duong, Lien-Thi}, year={2003}, month=jan, pages={1828–1836} }