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arXiv · 1810.08003

Generalized single-parameter aging tests and their application to glycerol

Lisa Anita Roed·Tina Hecksher·Jeppe C. Dyre·Kristine Niss
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Abstract

Physical aging of glycerol following temperature jumps is studied by dielectric spectroscopy at temperatures just below the glass transition temperature. The data are analyzed using two single-parameter aging tests developed by Hecksher et al. [J. Chem. Phys. 142, 241103 (2015)]. We generalize these tests to include jumps ending at different temperatures. Moreover, four times larger jumps than previously are studied. The single-parameter aging tests are here for the first time applied to a hydrogen-bonded liquid. We conclude that glycerol obeys single-parameter aging to a good approximation.

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Lisa Anita Roed, Tina Hecksher, Jeppe C. Dyre, Kristine Niss. 2019-02-01. Generalized single-parameter aging tests and their application to glycerol. https://doi.org/10.1063/1.5066387

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