Non gradient properties of self assembled electrolytes: From block co polymers to ionic liquids

by Arik Yochelis

at Condensed Matter Seminar

Mon, 27 Mar 2017, 11:30
Physics building (#54) room 207

Abstract

Self assembly driven by phase separation coupled to Coulombic interactions is fundamental to a wide range of applications examples of which include soft matter lithography via di block copolymers membrane design using poly electrolytes and renewable energy applications based on complex nano materials such as ionic liquids However so far continuum mean field theories offer only corrections to dilute electrolytes and thus cannot be exploited to tackle the challenging properties of nano structuring and mass transport beyond Einstein Stokes relations By focusing on two case models charged polymers and ionic liquids we show that although charged self assembly is a gradient system it surprisingly displays several fundamental features related to far from equilibrium systems such as multiplicity of spatially localized states and patterning via type I and II morphological phase transitions at finite wavenumber Specifically these insights allow a novel thermodynamically consistent description via Onsager s energy dissipation relations for electrolytes that ranges from solvent free to dilute limit

Created on 22-03-2017 by Bar Lev, Yevgeny (ybarlev)
Updaded on 22-03-2017 by Bar Lev, Yevgeny (ybarlev)