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.
Original language | English |
---|---|
Article number | 044501 |
Journal | The Journal of Chemical Physics |
Volume | 150 |
Issue number | 4 |
Number of pages | 8 |
ISSN | 0021-9606 |
DOIs | |
Publication status | Published - 23 Jan 2019 |
Keywords
- Viscous liquid
- Glass transitions
- Isomorph theory
- Organic compounds
- Dielectric properties
- Dielectric spectroscopy
- Hydrogen bonding
- Aging theory