Specific-heat spectroscopy of glycerol and propylene glycol near the glass transition
- 1 August 1986
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (3), 1631-1642
- https://doi.org/10.1103/physrevb.34.1631
Abstract
We have measured the frequency-dependent specific heat of glycerol and propylene glycol near the glass transition. The measurements, covering a frequency range of five decades, probe the linear response of these supercooled liquids to small perturbations from equilibrium. The specific heat of these two liquids contains a contribution which relaxes increasingly slowly as the temperature is lowered. The relaxation time measured by specific-heat spectroscopy has the same temperature dependence as that measured by other techniques. This suggests that a single mechanism is responsible for all of the observed phenomena associated with the glass transition in these materials.Keywords
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