385019 Liquid Crystal-Based Emulsions for Synthesis of Non-Spherical Particles with Chemical Patches

Wednesday, November 19, 2014: 12:45 PM
208 (Hilton Atlanta)
Nicholas L. Abbott1, Dan Miller2 and Xiaoguang Wang2, (1)Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, (2)Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI

This presentation will describe the use of liquid crystal (LC)-in-water emulsions for the synthesis of non-spherical particles with chemically-distinct domains located at the poles of the particles.  The approach involves the localization of solid colloids at topological defects that form predictably at surfaces of water-dispersed LC droplets. By polymerizing the LC droplets displaying the colloids at their surface defects, we demonstrate formation of both spherical and, upon extraction of the mesogen, anisotropic composite particles with colloids located at either one or both of the poles.  Because the colloids protrude from the surfaces of the particles, they also define organized, chemical patches with functionality controlled by the colloid surface.  

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