A volumetric and dielectric study of m-fluoroaniline under pressure

The defect diffusion model and the properties of glasses and liquids

“…Consequently, the DDM predicts that the fragility should be approximately independent of pressure. This is in good agreement with the conclusions of Reiser and Kasper [31,32].…”

“…Further, it has been suggested that T C scales approximately as T g [4,29]. That T C scales approximately as T g can be seen from the results of Larsson and Andersson [30] and Kasper and Reiser [31]. Consequently, the DDM predicts that the fragility should be approximately independent of pressure.…”

“…Dependence of the melting and glass transition temperatures on pressure It has recently been shown that the pressure dependence of the logarithm of the melting temperature, T m , for m-fluoroaniline is the same as for its glass transition temperature, T g [31] i.e. the relative shift in T m and T g with pressure is about the same.…”

“…It has been pointed out in both Refs. [31] and [54] that the DDM interpretation of this phenomenon is that mostly the same defects are responsible for melting transition as for the glass transition.…”

Consequences of an Equation of State in the Thermodynamic Scaling Regime

“…In our analysis, we consider volumetric data earlier published for phenylphthalein−dimethylether (PDE), ortho-terphenyl (OTP), , propylene carbonate (PC), , meta-fluoroaniline (m-FA), , and 1,2-polybutadiene (1,2-PBD) . The thermodynamic scaling of relaxation times on one master plot according to eq has been validated for all of the materials which represent van der Waals liquids (PDE, , OTP, , PC), weakly hydrogen-bonded liquids (m-FA), and polymers (1,2-PBD).…”