Dynamics of glass-forming liquids. Vi. Dielectric relaxation study of neat decahydro-naphthalene

Kalyan Duvvuri; Ranko Richert

doi:10.1063/1.1497158

Dynamics of glass-forming liquids. Vi. Dielectric relaxation study of neat decahydro-naphthalene

Kalyan Duvvuri, Ranko Richert

Molecular Sciences, School of (SMS)

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

Abstract

The frequency dependent dielectric relaxation of undoped cis/trans decahydro-naphthalene was measured in its viscous supercooled regime. Triplet state solvation experiments were performed near T_g=134.7 K to substantiate the exceptional steepness of this material, regarding the temperature dependence of the average structural relaxation time. A fragility or steepness index of m=147 was obtained, which was the highest value reported for a molecular gas former. Structural relaxation of neat decaline differed significantly from that of the 17.2 mol% chlorobenzene doped counterpart.

Original language	English (US)
Pages (from-to)	4414-4418
Number of pages	5
Journal	Journal of Chemical Physics
Volume	117
Issue number	9
DOIs	https://doi.org/10.1063/1.1497158
State	Published - Sep 1 2002

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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abstract = "The frequency dependent dielectric relaxation of undoped cis/trans decahydro-naphthalene was measured in its viscous supercooled regime. Triplet state solvation experiments were performed near Tg=134.7 K to substantiate the exceptional steepness of this material, regarding the temperature dependence of the average structural relaxation time. A fragility or steepness index of m=147 was obtained, which was the highest value reported for a molecular gas former. Structural relaxation of neat decaline differed significantly from that of the 17.2 mol% chlorobenzene doped counterpart.",

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AB - The frequency dependent dielectric relaxation of undoped cis/trans decahydro-naphthalene was measured in its viscous supercooled regime. Triplet state solvation experiments were performed near Tg=134.7 K to substantiate the exceptional steepness of this material, regarding the temperature dependence of the average structural relaxation time. A fragility or steepness index of m=147 was obtained, which was the highest value reported for a molecular gas former. Structural relaxation of neat decaline differed significantly from that of the 17.2 mol% chlorobenzene doped counterpart.

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Dynamics of glass-forming liquids. Vi. Dielectric relaxation study of neat decahydro-naphthalene

Abstract

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