Liquid Crystal-Like Phase Separation in Systems of Macroscopic Rods

作     者：Larry A. Chick Christopher Viney Ilhan A. Aksay 

作者机构：Battelle Pacific Northwest Laboratory Richland USA Department of Materials Science and Engineering FB-10 and the Advanced Materials Technology Program University of Washington Seattle USA 

出 版 物：《MRS Online Proceedings Library》 

年 卷 期：2011年第134卷第1期

页      面：27-32页

摘      要：Experiments with monolayers of macroscopic rods indicate separation into isotropic and aligned phases at greater-than-critical concentrations. This behavior is qualitatively similar to that of rodlike liquid crystalline polymers, which in turn has been modelled successfully in threedimensions by Flory and Ronca. We have adapted their approach to predict the ordering of rods in two dimensions. A preliminary phase diagram is presented. The critical rod concentration at which an aligned phase can appear first is a decreasing function of rod axial ratio. Rods of a given axial ratio will phase separate at lower overall concentrations in two dimensions than in three.