TEMPERATURE VERSUS DENSITY EFFECTS IN GLASSFORMING LIQUIDS AND POLYMERS: A SCALING HYPOTHESIS AND ITS CONSEQUENCES

Christiane Alba-Simionesco (1) , Gilles Tarjus (2)

1 LCPO - Laboratoire de Chimie Physique D'Orsay
2 LPTMC - Laboratoire de Physique Théorique de la Matière Condensée

We discuss the validity and the outcome of a scaling hypothesis proposed by us some years ago, according to which the influence of the density on the slowing down of flow and relaxation in glassforming liquids and polymers is described trough a single effective interaction energy Einf(rho). We stress the formal consequences and the physical meaning of the scaling.

Mots clés: glass transition; densite and temperature; scaling; fragilities

Domaines: Chimie-Physique [physics.chem-ph]; Systèmes désordonnés et réseaux de neurones [cond-mat.dis-nn]

Christiane Alba-Simionesco, Gilles Tarjus. TEMPERATURE VERSUS DENSITY EFFECTS IN GLASSFORMING LIQUIDS AND POLYMERS: A SCALING HYPOTHESIS AND ITS CONSEQUENCES. 2006. ⟨hal-00013165v2⟩