caa a22 4500 46581400X CHVBK 20180323112122.0 cr unu---uuuuu 170327e19900501xx s 000 0 eng 10.1007/BF01331357 doi (NATIONALLICENCE)springer-10.1007/BF01331357 Diffusion in polyelectrolyte solutions [Elektronische Daten] [A. Morro, G. Maugin, R. Drouot] Molecular migration in nonhomogeneous flows of a polyelectrolyte solution is considered. The solution is modelled as a binary mixture whose electrically-charged constituents are regarded as compressible fluids. Upon deriving a set of thermodynamic restrictions for the mixture, non-equilibrium quantities are examined in detail. As a result, two schemes are elaborated for the description of cross streamline migration, induced by the second gradient of the velocity, where also occur coupling effects. In the first scheme the migration effect is described through a stress term which involves a coupling with the conformation of the macromolecule; in the second scheme it is described through a term in the diffusion velocity where coupling occurs with the velocity gradient. In both cases the thermodynamic approach leads to a systematic framework with a minimal number of constitutive coefficients, which is an essential aspect for any comparison with experimental data. Steinkopff, 1990 Polymer m igration nationallicence d iffusion nationallicence m ixture nationallicence t hermodynamics nationallicence velocitygradient flow nationallicence Morro A. DIBE, Università, Viale Causa 13, 16145, Genova, Italy aut Maugin G. Laboratoire de Modélisation en Mécanique associé au CNRS, Université P. et M. Curie, Tour 66 - 4 place Jussieu, 75252, Paris Cedex 05, France aut Drouot R. Laboratoire de Modélisation en Mécanique associé au CNRS, Université P. et M. Curie, Tour 66 - 4 place Jussieu, 75252, Paris Cedex 05, France aut Rheologica Acta Steinkopff-Verlag 29/3(1990-05-01), 215-222 0035-4511 29:3<215 1990 29 397 https://doi.org/10.1007/BF01331357 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01331357 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Morro A. DIBE, Università, Viale Causa 13, 16145, Genova, Italy aut NATIONALLICENCE 700 1- Maugin G. Laboratoire de Modélisation en Mécanique associé au CNRS, Université P. et M. Curie, Tour 66 - 4 place Jussieu, 75252, Paris Cedex 05, France aut NATIONALLICENCE 700 1- Drouot R. Laboratoire de Modélisation en Mécanique associé au CNRS, Université P. et M. Curie, Tour 66 - 4 place Jussieu, 75252, Paris Cedex 05, France aut NATIONALLICENCE 773 0- Rheologica Acta Steinkopff-Verlag 29/3(1990-05-01), 215-222 0035-4511 29:3<215 1990 29 397 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer