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Size-Dependent Ordering of Liquid Crystals Observed in Polymeric Capsules with Micrometer and Smaller Diameters

Authors

  • Jugal K. Gupta,

    1. Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison WI 53706 (USA), Fax: (+1) 608-262-5434
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  • Sri Sivakumar,

    1. Centre for Nanoscience and Nanotechnology, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010 (Australia), Fax: (+61) 3-8344-4153
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  • Frank Caruso Dr.,

    1. Centre for Nanoscience and Nanotechnology, Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010 (Australia), Fax: (+61) 3-8344-4153
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  • Nicholas L. Abbott Dr.

    1. Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison WI 53706 (USA), Fax: (+1) 608-262-5434
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  • We thank Dr. Oleg D. Lavrentovich (Kent State University) and Dr. Timothy J. Bunning (Air Force Research Laboratory, Dayton, OH) for their careful reading of the manuscript and helpful suggestions. This work was supported by the ARC Linkage International Materials World Network Grant (F.C. and N.L.A.), the ARC Federation Fellowship Scheme (F.C.), and the NSF (DMR-0520527 and DMR-0602570).

Abstract

Made to order: Aqueous dispersions of polymer-encapsulated liquid crystal (LC) droplets were synthesized with precise interfacial chemistry and sizes in the micrometer-to-sub-micrometer range. Size-dependent changes in LC ordering could be observed. Study of the competition between size and interfacial chemistry on LC ordering enables size-dependent properties of LC droplets to be exploited in applications such as photonics and sensing.

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