Polymerized Ionic Liquids

Correlation of Ionic Conductivity with Nanoscale Morphology and Counterion Volume

Ciprian Iacob, Atsushi Matsumoto, Marissa Brennan, Hongjun Liu, Stephen J. Paddison, Osamu Urakawa, Tadashi Inoue, Joshua Sangoro, James Patrick Runt

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The impact of the chemical structure on ion transport, nanoscale morphology, and dynamics in polymerized imidazolium-based ionic liquids is investigated by broadband dielectric spectroscopy and X-ray scattering, complemented with atomistic molecular dynamics simulations. Anion volume is found to correlate strongly with Tg-independent ionic conductivities spanning more than 3 orders of magnitude. In addition, a systematic increase in alkyl side chain length results in about one decade decrease in Tg-independent ionic conductivity correlating with an increase in the characteristic backbone-to-backbone distances found from scattering and simulations. The quantitative comparison between ion sizes, morphology, and ionic conductivity underscores the need for polymerized ionic liquids with small counterions and short alkyl side chain length in order to obtain polymer electrolytes with higher ionic conductivity.

Original languageEnglish (US)
Pages (from-to)941-946
Number of pages6
JournalACS Macro Letters
Volume6
Issue number9
DOIs
StatePublished - Sep 19 2017

Fingerprint

Ionic Liquids
Ionic conductivity
Ionic liquids
Chain length
Ions
Dielectric spectroscopy
X ray scattering
Electrolytes
Anions
Molecular dynamics
Polymers
Negative ions
Scattering
Computer simulation

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Iacob, C., Matsumoto, A., Brennan, M., Liu, H., Paddison, S. J., Urakawa, O., ... Runt, J. P. (2017). Polymerized Ionic Liquids: Correlation of Ionic Conductivity with Nanoscale Morphology and Counterion Volume. ACS Macro Letters, 6(9), 941-946. https://doi.org/10.1021/acsmacrolett.7b00335
Iacob, Ciprian ; Matsumoto, Atsushi ; Brennan, Marissa ; Liu, Hongjun ; Paddison, Stephen J. ; Urakawa, Osamu ; Inoue, Tadashi ; Sangoro, Joshua ; Runt, James Patrick. / Polymerized Ionic Liquids : Correlation of Ionic Conductivity with Nanoscale Morphology and Counterion Volume. In: ACS Macro Letters. 2017 ; Vol. 6, No. 9. pp. 941-946.
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Iacob, C, Matsumoto, A, Brennan, M, Liu, H, Paddison, SJ, Urakawa, O, Inoue, T, Sangoro, J & Runt, JP 2017, 'Polymerized Ionic Liquids: Correlation of Ionic Conductivity with Nanoscale Morphology and Counterion Volume', ACS Macro Letters, vol. 6, no. 9, pp. 941-946. https://doi.org/10.1021/acsmacrolett.7b00335

Polymerized Ionic Liquids : Correlation of Ionic Conductivity with Nanoscale Morphology and Counterion Volume. / Iacob, Ciprian; Matsumoto, Atsushi; Brennan, Marissa; Liu, Hongjun; Paddison, Stephen J.; Urakawa, Osamu; Inoue, Tadashi; Sangoro, Joshua; Runt, James Patrick.

In: ACS Macro Letters, Vol. 6, No. 9, 19.09.2017, p. 941-946.

Research output: Contribution to journalArticle

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AU - Iacob, Ciprian

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AU - Brennan, Marissa

AU - Liu, Hongjun

AU - Paddison, Stephen J.

AU - Urakawa, Osamu

AU - Inoue, Tadashi

AU - Sangoro, Joshua

AU - Runt, James Patrick

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