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Shear-induced shift of spinodal line in entangled polymer blends
M Criado-Sancho1, D Jou, J Casas-Vázquez
1Departamento de Ciencias y Técnicas Físicoquímicas, Facultad de Ciencias, UNED, Senda del Rey, 9, 28040 Madrid, Spain.
Abstract:
We study the shear-flow effects on phase separation of entangled polymer blends by incorporating into the chemical potential a nonequilibrium contribution due to the flow. The results are compared with those of a previous analysis by other authors which did not modify the chemical potential but used a different assumption for the stress tensor of the blend.