3 years ago

Methimazolium-based ionic liquid crystals: Emergence of mesomorphic properties via a sulfur motif

Methimazolium-based ionic liquid crystals: Emergence of mesomorphic properties via a sulfur motif
We describe the proficient synthesis and thermotropic mesomorphicity of thioether–functionalized imidazolium–type ionic liquids containing C12 and C18 chains associated with Br and OTf anions. The mesomorphic behavior and phase transition temperatures were studied by Polarizing Optical Microscopy (POM), Differential Scanning Calorimetry (DSC) and Small-Angle X-ray Scattering (SAXS). The ionic liquids with bromide anion display Smectic A lamellar phase giving homeotropic and fan-shaped textures. The layered crystallographic structure is reported by Single-Crystal XRD. The electrochemical characteristics of the ionic liquids with C18 side chain have been determined via Cyclic Voltammetry.

Publisher URL: www.sciencedirect.com/science

DOI: S0040402017308074

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