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Wojnarowska Z, Musiał M, Cheng S, Drockenmuller E, Paluch M. Fast secondary dynamics for enhanced charge transport in polymerized ionic liquids. Phys Rev E 2020; 101:032606. [PMID: 32289964 DOI: 10.1103/physreve.101.032606] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/21/2020] [Indexed: 11/07/2022]
Abstract
Segmental dynamics is considered as a major factor governing ionic conductivity of polymerized ionic liquids (PILs), envisioned as potential electrolytes in fuel cells and batteries. Our dielectric studies performed in T-P thermodynamic space on ionene, composed of the positively charged polymer backbone and freely moving anions, indicate that other relaxation modes, completely ignored so far, can affect the charge transport in PILs as well. We found that fast mobility manifested by a secondary β process promotes segmental dynamics and thereby increases ionic conductivity making the studied material a first coupled PIL of superionic properties. The molecular mechanism underlying such a β process has been identified as Johari-Goldstein relaxation giving experimental proof that fast secondary relaxations of intermolecular origin exist also in PILs and thereby reveal a universal character.
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Affiliation(s)
- Z Wojnarowska
- Institute of Physics, the University of Silesia in Katowice, Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - M Musiał
- Institute of Physics, the University of Silesia in Katowice, Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - S Cheng
- Institute of Physics, the University of Silesia in Katowice, Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - E Drockenmuller
- Université Lyon, Université Lyon 1, CNRS, Ingénierie des Matériaux Polymères UMR 5223, F-69003 Lyon, France
| | - M Paluch
- Institute of Physics, the University of Silesia in Katowice, Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
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Cheng S, Musiał M, Wojnarowska Z, Holt A, Roland CM, Drockenmuller E, Paluch M. Structurally Related Scaling Behavior in Ionic Systems. J Phys Chem B 2020; 124:1240-1244. [PMID: 31999929 PMCID: PMC7497657 DOI: 10.1021/acs.jpcb.9b10783] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/27/2020] [Indexed: 01/12/2023]
Abstract
We examine the density scaling properties of two ionic materials, a classic aprotic low molecular weight ionic liquid, 1-butyl-3-methylimidazolium bis(perfluoroethylsulfonyl)imide ([BMIm][BETI]), and a polymeric ionic liquid, poly(3-methyl-1,2,3-triazolium bis(trifluoromethylsulfonyl)imide) (TPIL). Density scaling is known to apply rigorously to simple liquids lacking specific intermolecular associations such as hydrogen bonds. Previous work has found that ionic liquids conform to density scaling over limited ranges of temperature and pressure. In this work, we find that the dc-conductivity of [BMIm][BETI] accurately scales for density changes of 17%; however, there is a departure from scaling for TPIL for even more modest variations of temperature and pressure. The entropy of both ionic samples conforms to density scaling only if the scaling exponent is allowed to vary linearly with the magnitude of the entropy.
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Affiliation(s)
- S. Cheng
- Institute
of Physics, University of Silesia in Katowice,
Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1A, 41−500 Chorzów, Poland
| | - M. Musiał
- Institute
of Physics, University of Silesia in Katowice,
Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1A, 41−500 Chorzów, Poland
| | - Z. Wojnarowska
- Institute
of Physics, University of Silesia in Katowice,
Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1A, 41−500 Chorzów, Poland
| | - A. Holt
- Naval
Research Laboratory, Chemistry Division, Washington, DC 20375-5342, United States
| | - C. M. Roland
- Naval
Research Laboratory, Chemistry Division, Washington, DC 20375-5342, United States
| | - E. Drockenmuller
- Univ
Lyon, Université Lyon 1, CNRS, Ingénierie des Matériaux Polymères, UMR
5223, F-69003, Lyon, France
| | - M. Paluch
- Institute
of Physics, University of Silesia in Katowice,
Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1A, 41−500 Chorzów, Poland
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3
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Samet M, Kallel A, Kallel-Elloumi A, Drockenmuller E, Serghei A. Exchange Process in the Dielectric Loss of Molecular and Macromolecular Ionic Conductors in the Interfacial Layers Formed by Electrode Polarization Effects. J Phys Chem B 2019; 123:8532-8542. [PMID: 31566972 DOI: 10.1021/acs.jpcb.9b05837] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here we report a first analytical approach to determine the spectral dependence of the complex permittivity function of molecular and macromolecular ionic conductors in the interfacial layers formed by electrode polarization effects. We show that a previous model of electrode polarization effects that was successfully applied for describing the dielectric behavior of ionic liquids ( Serghei, A.; Tress, M.; Sangoro, J. R.; Kremer, F. Electrode polarization and charge transport at solid interfaces. Phys. Rev. B 2009 , 80 , 184301 ) can be now generalized and applied for polymer/ionic liquid blends as well as for poly(ionic liquid)s. The determined dielectric function of the interfacial layers reveals a dramatic change in the charge transport process manifested by a large decrease in conductivity. Our approach brings the first evidence for a relaxation peak detected in the dielectric loss of the interfaces, which is attributed to an exchange process between the interface and the bulk. This study gives new insights into the mechanism of charge transport at interfaces and could thus contribute to a better correlation between the dielectric properties of ion conducting materials and their electrochemical behavior at interfaces.
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Affiliation(s)
- M Samet
- Univ Lyon, Université Lyon 1 , CNRS, Ingénierie des Matériaux Polymères, UMR 5223 , F-69003 Lyon , France.,Faculté des Sciences de Sfax , Laboratoire des Matériaux Composites Céramiques et Polymères , 3018 Sfax , Tunisia
| | - A Kallel
- Faculté des Sciences de Sfax , Laboratoire des Matériaux Composites Céramiques et Polymères , 3018 Sfax , Tunisia
| | - A Kallel-Elloumi
- Univ Lyon, Université Lyon 1 , CNRS, Ingénierie des Matériaux Polymères, UMR 5223 , F-69003 Lyon , France
| | - E Drockenmuller
- Univ Lyon, Université Lyon 1 , CNRS, Ingénierie des Matériaux Polymères, UMR 5223 , F-69003 Lyon , France
| | - A Serghei
- Univ Lyon, Université Lyon 1 , CNRS, Ingénierie des Matériaux Polymères, UMR 5223 , F-69003 Lyon , France
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Flachard D, Rolland J, Obadia MM, Serghei A, Bouchet R, Drockenmuller E. A 1,2,3-triazolate lithium salt with ionic liquid properties at room temperature. Chem Commun (Camb) 2018; 54:9035-9038. [DOI: 10.1039/c8cc04463e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A triethylene glycol-based 1,2,3-triazolate lithium salt with ionic liquid properties at room temperature is synthesized in three steps including copper-catalysed cycloaddition between alkyne-functionalized monomethoxy-triethylene glycol and azidomethyl pivalate, followed by the deprotection of the methyl pivalate group and further lithiation of the 1H-1,2,3-triazole intermediate.
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Affiliation(s)
- D. Flachard
- Univ Lyon
- Université Lyon 1
- CNRS
- Ingénierie des Matériaux Polymères
- Lyon
| | - J. Rolland
- Univ. Grenoble Alpes
- CNRS
- Institute of Engineering Univ. Grenoble Alpes (Grenoble INP)
- LEPMI
- 38000 Grenoble
| | - M. M. Obadia
- Univ Lyon
- Université Lyon 1
- CNRS
- Ingénierie des Matériaux Polymères
- Lyon
| | - A. Serghei
- Univ Lyon
- Université Lyon 1
- CNRS
- Ingénierie des Matériaux Polymères
- Lyon
| | - R. Bouchet
- Univ. Grenoble Alpes
- CNRS
- Institute of Engineering Univ. Grenoble Alpes (Grenoble INP)
- LEPMI
- 38000 Grenoble
| | - E. Drockenmuller
- Univ Lyon
- Université Lyon 1
- CNRS
- Ingénierie des Matériaux Polymères
- Lyon
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Obadia MM, Colliat-Dangus G, Debuigne A, Serghei A, Detrembleur C, Drockenmuller E. Poly(vinyl ester 1,2,3-triazolium)s: a new member of the poly(ionic liquid)s family. Chem Commun (Camb) 2015; 51:3332-5. [PMID: 25588063 DOI: 10.1039/c4cc08847f] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A vinyl ester monomer carrying a pendant 1,2,3-triazole group is synthesized in two steps and polymerized by cobalt-mediated radical polymerization. Subsequent alkylation with N-methyl bis[(trifluoromethyl)sulfonyl]imide affords the corresponding poly(vinyl ester 1,2,3-triazolium). This unprecedented example of poly(vinyl ester ionic liquid) exhibits an ionic conductivity of 9.2 × 10(-7) S cm(-1) at 30 °C.
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Affiliation(s)
- M M Obadia
- Université de Lyon 1, Ingénierie des Matériaux Polymères (IMP, UMR CNRS 5223), 15 Boulevard Latarjet, 69622 Villeurbanne Cedex, France.
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Sood R, Zhang B, Serghei A, Bernard J, Drockenmuller E. Triethylene glycol-based poly(1,2,3-triazolium acrylate)s with enhanced ionic conductivity. Polym Chem 2015. [DOI: 10.1039/c5py00273g] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A well-defined triethylene glycol-based poly(1,2,3-triazolium acrylate) having a bis(trifluoromethane)sulfonimide anion and an anhydrous ionic conductivity of 10−5 S cm−1 at 30 °C is reported.
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Affiliation(s)
- R. Sood
- Université Claude Bernard Lyon 1
- INSA de Lyon
- Ingénierie des Matériaux Polymères (IMP – UMR CNRS 5223)
- 69622 Villeurbanne Cedex
- France
| | - B. Zhang
- Université Claude Bernard Lyon 1
- INSA de Lyon
- Ingénierie des Matériaux Polymères (IMP – UMR CNRS 5223)
- 69622 Villeurbanne Cedex
- France
| | - A. Serghei
- Université Claude Bernard Lyon 1
- INSA de Lyon
- Ingénierie des Matériaux Polymères (IMP – UMR CNRS 5223)
- 69622 Villeurbanne Cedex
- France
| | - J. Bernard
- Université Claude Bernard Lyon 1
- INSA de Lyon
- Ingénierie des Matériaux Polymères (IMP – UMR CNRS 5223)
- 69622 Villeurbanne Cedex
- France
| | - E. Drockenmuller
- Université Claude Bernard Lyon 1
- INSA de Lyon
- Ingénierie des Matériaux Polymères (IMP – UMR CNRS 5223)
- 69622 Villeurbanne Cedex
- France
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