Electric field induced bending of Ionic polymer electrolyte membrane

ORAL

Abstract

Electroactive polymers (EAPs) are promising candidates for future soft robotics due to their light weight, low cost and ease of fabrication. Among different kinds of EAPs Ionic electroactive polymers (IEAPs) are more attractive, since they are low voltage driven. Here we report about electric field induced studies of solid-state ionic polymer electrolyte membranes (IPEMs). Three different kinds of electrodes (gold, carbon and PEDOT: PSS based) were tested to optimize performance. Highly ionic conductive IPEMs were prepared by using Poly (ethylene glycol) diacrylate (PEGDA), thiosiloxane and ionic liquid(1-Hexyl-3-methylimidazolium hexafluorophosphate) as described by Piedrahita et al [1]. Different ionic liquid concentrations were tested to achieve large bending displacements. In addition to the reversible short-term low voltage (<3V) responses, we also studied responses up to 20V ac and dc voltages in wide-range of time scales. Not only non-linearity and hysteresis, but also a so far not understood inversion of displacement was also observed at large voltages and large time scales. These studies will provide important information on electrode effects and applicability limits of IEAPs.

[1]C. Piedrahita, V. Kusuma, H. B. Nulwala, and T. Kyu, Solid State Ionics 322, 61 (2018).

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Presenters

  • Chathuranga Prageeth Rajapaksha

    Department of Physics, Kent State University,Kent, OH 44240, USA

Authors

  • Chathuranga Prageeth Rajapaksha

    Department of Physics, Kent State University,Kent, OH 44240, USA

  • Chenrun Feng

    Liquid Crystal Institute, Kent State University, Liquid Crystal Institute, Kent State University,Kent, OH 44240, USA

  • Camilo Piedrahita

    The University of Akron, Polymer Engineering, The University of Akron, Polymer Engineering, University of Akron, Department of Polymer Engineering, University of Akron, OH 44325, USA

  • Jinwei Cao

    The University of Akron, Polymer Engineering, The University of Akron, Polymer Engineering, University of Akron, Department of Polymer Engineering, University of Akron, OH 44325, USA

  • Thein Kyu

    The University of Akron, Polymer Engineering, The University of Akron, Polymer Engineering, University of Akron, Department of Polymer Engineering, University of Akron, OH 44325, USA

  • Antal Istvan Jakli

    Liquid Crystal Institute, Kent State University, Department of Physics and Advanced Materials Liquid Crystal Institute, Kent State University, Chemical Physics Interdisciplinary Program, Liquid Crystal Institute, Kent State University, Kent, OH USA, Chemical Physics Interdisciplinary Program, Kent State University, Advanced Materials & Liquid Crystal Institute, Kent State University, Kent State University, Department of Physics, Kent State University,Kent, OH 44240, USA