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Thiazolium-based ionic liquids: Synthesis, characterization and physicochemical properties
- Source :
- Journal of Molecular Liquids. 342:117553
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Thiazolium salts are structurally analogous to the most common imidazolium-based ionic liquids (ILs), and are supposed to be a new class of ILs. However, there are up to now only a few reports and absence of systematic study on thiazolium ILs. In this work, several thiazolium-based ILs were prepared, characterized and comparatively studied. Most of the thiazolium ILs are liquid at room temperature, with melting points below 43.0 °C. Good thermal stability was observed for thiazolium ILs, resulting in thermal decomposition temperatures up to 264 ∼ 358 °C. In comparison with the conventional imidazolium ILs, thiazolium ILs exhibit moderate density, refractive index and surface tension, which all generally decrease with temperature. According to the temperature-dependent viscosity and conductivity, thiazolium ILs follow fractional Walden’s rule, indicating strong ion-ion coupling. Besides, thiazolium ILs display relatively narrow electrochemical window (3.1 ∼ 4.0 V).
- Subjects :
- Chemistry
Thermal decomposition
Conductivity
Condensed Matter Physics
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Surface tension
Viscosity
chemistry.chemical_compound
Polymer chemistry
Ionic liquid
Materials Chemistry
Melting point
Thermal stability
Physical and Theoretical Chemistry
Spectroscopy
Electrochemical window
Subjects
Details
- ISSN :
- 01677322
- Volume :
- 342
- Database :
- OpenAIRE
- Journal :
- Journal of Molecular Liquids
- Accession number :
- edsair.doi...........13f72370abf2df29711a1a1fb266e255