Physico-chemical characterization of alkyl-imidazolium protic ionic liquids

Physico-chemical characterization of alkyl-imidazolium protic ionic liquids

Nine salts, expected to be protic ionic liquids, have been synthesized by a direct reaction of proton transfer from a number of protic acids to methyl- or butyl-imidazole. The temperatures of phase transitions and thermal stability of the PILs have been measured. Physico-chemical properties of the i...

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Veröffentlicht in:Journal of molecular liquids 2020-01, Vol.297, p.111305, Article 111305
Hauptverfasser: Fadeeva, Yu.A., Gruzdev, M.S., Kudryakova, N.O., Shmukler, L.E., Safonova, L.P.
Format: Artikel
Sprache:eng
Schlagworte:
Butyl-imidazolium
Conductivity
Electrochemical window
Methyl-imidazolium
Protic ionic liquid (PIL)
Thermal stability
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Zusammenfassung:Nine salts, expected to be protic ionic liquids, have been synthesized by a direct reaction of proton transfer from a number of protic acids to methyl- or butyl-imidazole. The temperatures of phase transitions and thermal stability of the PILs have been measured. Physico-chemical properties of the ionic liquids, such as conductivity, electrochemical stability, viscosity, density have been measured and discussed, and the PILs ionicity has been analyzed on the basis of the Walden plots. •[MeIm/MsO] and [BuIm/H3PO4] are molten salts (tm>100 °C), the other salts are ionic liquids (tm
ISSN:0167-7322
1873-3166
DOI:10.1016/j.molliq.2019.111305