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Flexoionic effect of Ionic Liquid Crystal Elastomers

ORAL

Abstract

Flexoelectricity (strain gradient induced electricity) has potential of a wide variety of applications such as strain sensors and micropower generators. Our present study was motivated by the novel phenomenon of mechanoelctrical conversion (flexoionic effect) of ionic electroactive polymers [1]and a new class of active material – ionic liquid crystal elastomers (iLCEs) [2]. Here we report the flexoionic effect of iLCEs. Highly ionic conductive iLCEs are prepared using M1 (4-(6-Acryloxy-hex-1-yl-oxy) phenyl-4-(hexyloxy) benzoate), M2 (1,4-Bis-[4-(6-acryloyloxyhexyloxy) benzoyloxy]-2-methylbenzene), ionic liquid (1-Hexyl-3-methylimidazolium hexafluorophosphate) and the photo initiator. The effect of alignment (planar, homeotropic and hybrid) and ionic liquid concentration at the function of bending amplitude are studied on the mechanoelectrical conversion.

Reference
[1] J. Cao, C. Piedrahita, and T. Kyu, Macromol. Mater. Eng. 304, 1 (2019).
[2] C. Feng, C. P. H. Rajapaksha, J. M. Cedillo, C. Piedrahita, J. Cao, V. Kaphle, B. Lüssem, T. Kyu, and A. Jákli, Macromol. Rapid Commun. 40, 1900299 (2019).

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Presenters

  • Chathuranga Prageeth Rajapaksha

    Department of Physics, Kent State University

Authors

  • Chathuranga Prageeth Rajapaksha

    Department of Physics, Kent State University

  • Chenrun Feng

    Liquid Crystal Institute, Kent State University, Advanced Materials and Liquid Crystal Institute, Kent State University

  • Camilo Piedrahita

    Department of Polymer Engineering, University of Akron

  • Hamad Albehaijan

    Department of Polymer Engineering, University of Akron, Univ of Akron, Polymer Engineering, University of Akron

  • Vikash Kaphle

    Kent State Univ - Kent, Department of Physics, Kent State University

  • Pushpa Paudel

    Kent State Univ - Kent, Department of Physics, Kent State University

  • Bjorn Lussem

    Kent State Univ - Kent, Department of Physics, Kent State University

  • Thein Kyu

    Department of Polymer Engineering, University of Akron, Univ of Akron, Polymer Engineering, University of Akron

  • Antal Istvan Jakli

    Kent State Univ - Kent, Department of Physics, Kent State University, Advanced Materials and Liquid Crystal Institute, Kent State University