Experimental data on viscosity of typical ionic liquids in the liquid state were compiled and critically evaluated. The compilation contains data for 268 ionic liquids from 215 literature references and covers the period from 1998 through the end of December 2018. Equations for corrections of influences of contamination water and residual Cl− on viscosities of a series of typical ionic liquids are established. The influences of experimental methodology and the impurities (i.e., contamination water and residual halide ions) of the samples used on the reported viscosities of these typical ionic liquids are critically evaluated or quantitatively corrected, and the viscosities for these “pure” ionic liquids are recommended. The parameters of the Vogel–Fulcher–Tammann equation for temperature dependence of the recommended viscosities of these ionic liquids were reported. The effects of ionic structures on the viscosity of ionic liquids are presented.

Viscosity of Typical Room-Temperature Ionic Liquids: A Critical Review

Triethylammonium-based protic ionic liquids with sulfonic acids: Phase behavior and electrochemistry

Organic semiconductors are being increasingly used for a variety of biological applications, such as biochemical sensors, drug delivery, and neural interfaces. However, the poor adhesion of cells to the typically hydrophobic, neutrally charged, and low-surface energy semiconducting thin films limits their use as part of in vitro, cell-integrated bioelectronic devices. In this work, we investigate the influence of lysine side chain units incorporated in a diketopyrrolopyrrole semiconducting polymer on neural cell adhesion and growth and evaluate their function in electrical devices. Synthesis of such biofunctionalized polymers obviates the need for biological coating steps while changing the surface physiochemistry, which makes them promising for applications in bioelectronics.

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Improving the Compatibility of Diketopyrrolopyrrole Semiconducting Polymers for Biological Interfacing by Lysine Attachment

An innovative and eco-friendly modality for synthesis of highly fluorinated graphene by an acidic ionic liquid: Making of an efficacious vehicle for anti-cancer drug delivery

The physicochemical properties and structure of alkylammonium protic ionic liquids of RnH4-nNX (n = 1–3) family. A mini–review

Protic ionic liquids (PILs) composed of the triethylammonium cation with dihydrogen phosphite, tosylate, and trifluoroacetate anions were synthesized. All samples were salts with melting points below 100 °C and were characterized via NMR spectroscopy, attenuated total reflection (ATR) spectroscopy, differential scanning calorimetry (DSC), and thermogravimetry (TG). The electrochemical characteristics of each protic ionic liquid were obtained using a combination of impedance spectroscopy and cyclic voltammetry. Moreover, the influence of water on the thermal behavior and conductivity of triethylammonium tosylate is studied. A linear correlation between the temperatures of melting and crystallization is established for a number of PILs, including both derivatives of triethylamine with different acids reported in the literature and the newly synthesized PILs. The optimal combination of thermal characteristics and electroconductivity was observed for triethylammonium trifluoroacetate and tosylate.

N.O. Kudryakova

Papers

Thermal behavior and electrochemistry of protic ionic liquids based on triethylamine with different acids

Triethanolamine-based protic ionic liquids with various sulfonic acids: Synthesis and properties

Synthesis and properties of triethanolamine-based salts with mineral and organic acids as protic ionic liquids