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Polymerizable Ionic Liquids for Solid-State Polymer Electrolytes

Löwe, Robert; Hanemann, Thomas; Hofmann, Andreas

Eight new polymerizable ammonium-TFSI ionic liquids were synthesized and characterized with respect to an application in energy storage devices. The ionic liquids feature methacrylate or acrylate termination as polymerizable groups. The preparation was optimized to obtain the precursors and ionic liquids in high yield. All products were characterized by NMR and IR spectroscopy. Phase transition temperatures were obtained by DSC analysis. Density, viscosity and ionic conductivity of the ionic liquids were compared and discussed. The results reveal that the length of attached alkyl groups as well as the methyl group at the polymerizable function have significant influences on the ionic liquids physicochemical properties. Ionic conductivity values vary between 0.264 mS cm−1 for [C2NA,22]TFSI and 0.080 mS cm−1 for [C8NMA,22]TFSI at 25 °C. Viscosity values are within a range of 0.762 Pa s for [C2NA,22]TFSI and 1.522 Pa s for [C6NMA,22]TFSI at 25 °C.

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Verlagsausgabe §
DOI: 10.5445/IR/1000089923
Veröffentlicht am 21.01.2019
DOI: 10.3390/molecules24020324
Seitenaufrufe: 17
seit 22.01.2019
Downloads: 18
seit 22.01.2019
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 1420-3049
KITopen-ID: 1000089923
Erschienen in Molecules
Band 24
Heft 2
Seiten Article: 324
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 17.01.2019
Schlagworte polymerizable ionic liquids; property-structure relationship; conductivity; viscosity; density
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