Effect of pressure on the dynamics of glass formers.
A description of the pressure dependence of the structural relaxation time has been derived from the Adam-Gibbs theory by writing the configurational entropy in terms of the excess heat capacity and the molar thermal expansion. This new equation was tested successfully on dielectric relaxation data for an epoxy compound over a wide range of temperature and pressure.
Casalini
R
R
INFM e Dipartimento di Fisica, Università di Pisa, Via Buonarroti 2, I-56127 Pisa, Italy. riccardo.casalini@df.unipi.it
Capaccioli
S
S
Lucchesi
M
M
Rolla
P A
PA
Paluch
M
M
Corezzi
S
S
Fioretto
D
D