Elucidating the correlation between morphology and ion dynamics in polymerized ionic liquids.

POSTER

Abstract

Charge transport and dynamics are investigated for a series of poly-ammonium and poly-imidazolium-based polymerized ionic liquids (polyIL) with a common bis(trifluoromethylsulfonyl)imide anion using broadband dielectric spectroscopy and temperature modulated differential scanning calorimetry. A significant enhancement of the Tg independent ionic conductivity is observed for ammonium based polyIL with shorter pendant groups, in comparison to imidazolium based systems. These results emphasize the importance of polymer backbone spacing as well as counter-ion size on ionic conductivity in polymerized ionic liquids.

Authors

  • Maximilian Heres

    University of Tennessee, Knoxville, Univ of Tennessee, Knoxville

  • Tyler Cosby

    Univ of Tennessee, Knoxville, University of Tennessee, Knoxville

  • Ciprian Iacob

    The Pennsylvania State University, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802 USA

  • James Runt

    The Pennsylvania State University, Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802 USA

  • Roberto Benson

    Univ of Tennessee, Knoxville

  • Hongjun Liu

    Univ of Tennessee, Knoxville

  • Stephen Paddison

    Univ of Tennessee, Knoxville

  • Joshua Sangoro

    University of Tennessee, Knoxville, Univ of Tennessee, Knoxville, University of Tennessee