Phase Separation Transition in Liquids and Polymers Induced by Electric Field Gradients

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概要

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• Spatially uniform electric fields have been used to induce instabilities in liquids and polymers, and to orient and deform ordered phases of block-copolymers. Here we discuss the demixing phase transition occurring in liquid mixtures when they are subject to spatially nonuniform fields. Above the critical value of potential, a phase-separation transition occurs, and two coexisting phases appear separated by a sharp interface. Analytical and numerical composition profiles are given, and the interface location as a function of charge or voltage is found. The possible influence of demixing on the stability of suspensions and on inter-colloid interaction is discussed.

• 2009-04-15

著者

• Marcus Gilad

  Max-planck-institut Fur Quantenoptik

• Tsori Yoav

  Department of Chemical Engineering, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel

関連論文

• Phase Separation Transition in Liquids and Polymers Induced by Electric Field Gradients

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