Anisotropy in Nonlinear Polymer Rheology

V. S. Volkov

Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 119991 Russia

e-mail: vsvolk@mail.ru

Received April 12, 2013;
Revised Manuscript Received April 5, 2014

Abstract—A theory describing the behavior of liquids with anisotropic relaxation times in terms of the
extended (locally nonequilibrium) thermodynamics of irreversible processes has been formulated. The theory
forms the basis for a general approach to the investigation of anisotropy of the rheological properties of orient-
able polymer liquids. Uniaxial shear and elongation flows of a viscoelastic fluid in one preferred direction have
been considered. The pattern of the obtained viscometric functions indicates the important role of macroscopic
orientation effects in the rheology of polymeric media.

DOI: 10.1134/S0965545X14050162

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.