Textural transformations in lyotropic chromonic liquid crystals under confinement

ORAL

Abstract

Lyotropic chromonic liquid crystals under capillary confinement display textural transformations between planar radial and planar polar modes, in which a +1 disclination branches into two +1/2 lines. The texture transformation is characterized by the nature and kinematics of the branch point, the aperture angle, and the shape of the lines. This work presents and validates a model of these four phenomena, which yield the viscoelastic moduli of these novel mesophases.

*This work is partially supported by a grant from the U.S. Office of Basic Energy Sciences, Department of Energy; grant DE-SC0001412 and McGill Engineering Doctorate Award.

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Authors

  • Alireza Shams

    • Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 2B2, Canada

  • Xuxia Yao

    • School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA

  • Alejandro D. Rey

    • McGill University, Montreal, Qc, Canada
    • Department of Chemical Engineering, McGill University
    • Department of Chemical Engineering, McGill University, Montreal, Quebec H3A 2B2, Canada

  • Jung Ok Park

    • School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA

  • Mohan Srinivasarao

    • School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA