Article
Polymer Science
Biao Zhang, Guillaume Sudre, Guilhem Quintard, Anatoli Serghei, Julien Bernard, Etienne Fleury, Aurelia Charlot
Summary: This study mixed RAFT-made poly(ionic liquid) chains with an ionic liquid, leading to homogeneous and transparent solutions due to similarities in structure and polarity. Rheology investigation showed that the solution's viscoelastic properties can be finely tuned by adjusting the chain molar mass and concentration. The high ionic conductivity and multi-scale local homogeneity of the PIL/IL solutions were confirmed through X-ray scattering experiments and microscopy analysis.
Article
Engineering, Chemical
Wei Qi, Junhui He, Mengjie Li, Maolin Zhai, Long Zhao
Summary: Rhenium has important applications in various industries, but its low concentration in the Earth's crust necessitates research on its separation and extraction. This study explored the extraction of rhenium using a demulsification method with an alkyl imidazolium ionic liquid-based microemulsion. Factors such as components of the microemulsion, temperature, acid concentration, and competitive ions were considered. The study found that the components of the microemulsion, alkyl chain length, and acid concentration significantly affected the extraction efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Gautier Meyer, Ralf Schweins, Tristan Youngs, Jean-Francois Dufreche, Isabelle Billard, Marie Plazanet
Summary: Ionic-liquid-based acidic aqueous biphasic solutions have made a breakthrough in metal recycling. The separation of phases can be achieved by controlling the temperature and acid concentration, which is facilitated by the adsorption of chloride ions on the surface of micelles.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Thermodynamics
Milan Vranes, Sanja Rackov, Snezana Papovic, Branka Pilic
Summary: The volumetric and viscosimetric properties of aqueous solutions of imidazolium-based ionic liquids with unsaturated and different alkyl chain lengths were investigated in this study. The effects of the introduced double bond and alkyl chain length on the overall volumetric changes at infinite dilution were analyzed, along with evaluating viscosity B-coefficients. The study discussed interactions in solution and compared results with literature for corresponding saturated analogues.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2021)
Article
Thermodynamics
Monia A. R. Martins, Filipe H. B. Sosa, Ilkka Kilpelainen, Joao A. P. Coutinho
Summary: This study aims to characterize the physicochemical properties of binary systems of water and two superbase-based ionic liquids, and to experimentally screen potential extractants for the recovery of the ILs. The results show that butanol has a certain extraction efficiency for [mTBDH][OAc].
FLUID PHASE EQUILIBRIA
(2022)
Article
Chemistry, Physical
Ksenia S. Egorova, Marina M. Seitkalieva, Alexey S. Kashin, Evgeniy G. Gordeev, Anna V. Vavina, Alexandra V. Posvyatenko, Valentine P. Ananikov
Summary: This study investigated the cytotoxicity of chemically relevant imidazolium PILs with different alkyl side chains and compared it with aprotic analogues. The results highlighted the role of anion type in determining the cytotoxicity of ILs with short alkyl side chains. Even low-toxic PILs showed harmful effects on eukaryotic cells when used as cryopreservation agents, and the studied IL/water mixtures tended to form simple solid hydrates due to the weak amphiphilic properties of imidazolium cations with short alkyl side chains.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Nicolas Keppeler, Paula D. Galgano, Soraya da Silva Santos, Naved Malek, Omar A. El Seoud
Summary: The study investigates the effects of alkyl side chain length of ionic liquid-based surfactants on their adsorption at the water/air interface and aggregation in aqueous solutions. Results show that increasing the side chain length enhances surface activity and affects various physicochemical properties, such as decreasing critical micelle concentration and increasing the area per surfactant molecule at the water/air interface.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Amit Pandey, S. Hashmi, G. Salunkhe, Velavan Kathirvelu, Keisham S. Singh, Rohit Singh Chauhan, Arijit Sengupta
Summary: A novel diamide ligand, 5-bromo-N1, N3-diisopropylisophthalamide, was synthesized and characterized, and its extraction mechanism with uranyl ions in various ionic liquid families was studied. Changing the ionic liquid system can achieve different extraction mechanisms, predominantly influenced by the cations of the ionic liquids. The study found that the back extraction of uranyl ions from the ionic liquids is better with sodium carbonate compared to EDTA and oxalic acid, but the efficacy varies among different ionic liquid systems.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Anuja Jain, Sangesh P. Zodape
Summary: Volumetric and compressibility approaches were used to analyze the intermolecular interactions of 1-Butyl-2,3-dimethyl imidazolium chloride in aqueous and glycine aqueous solutions. The study provides insights into solute-solute and solute-solvent interactions.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Pharmacology & Pharmacy
Bruna L. Kuhn, Tais F. A. Kaminski, Anderson R. Carvalho, Alexandre M. Fuentefria, Bianca M. B. C. Johann, Edilma E. da Silva, Gustavo P. Silveira, Tassia L. da Silveira, Felix A. A. Soares, Nilo Zanatta, Clarissa P. Frizzo
Summary: This study introduces imidazolium-based dicationic ILs with dicarboxylate anions, showing that DILs with a ten-carbon alkyl chain spacer are active against yeasts and tested bacterial strains, but most are toxic. DILs with less than ten carbons in the alkyl chain show activity against specific fungi and bacteria with moderate cytotoxicity.
Article
Environmental Sciences
Yin Qiu, Liming Wang
Summary: This study investigates the photochemical transformation of ionic liquids (ILs) and assesses their fate and ecological risks. The reaction rates of ILs were found to be influenced by the alkyl chain and showed slight variation with the paired anions. The primary contributors to ILs transformation were triplet-stated dissolved matter, hydroxyl radical, and carbonate radical. The ILs exhibited high persistence with an overall half-life of up to 670 days. The transformation products differed for reactions with hydroxyl radical and triplet-stated sodium anthraquinone-2sulfonate, and both the ILs and their products showed toxicity and low biodegradability, posing potential ecological risks to water environments.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Artashes A. Khachatrian, Timur A. Mukhametzyanov, Ramazan Z. Salikhov, Marat Safin, Dmitry G. Yakhvarov, Zufar N. Gafurov, Bulat F. Garifullin, Ilnaz T. Rakipov, Diana A. Mironova, Boris N. Solomonov
Summary: This work investigates the impact of imidazolium- and cholinium-based ionic liquids (ILs) on the thermal stability, binding, and aggregation of bovine serum albumin (BSA). The study evaluates various ILs including choline chloride [Ch][Cl], choline dihydrogenphosphate [Ch][DHP], and others. The presence of ILs enhances the thermal stability of BSA except for [OMIM][BF4]. Molecular docking is used to identify the probable binding modes of ILs with BSA. The findings suggest that ILs with short alkyl chain length promote the aggregation and thermal stability of BSA.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Paper & Wood
Kaoutar Aghmih, Abderrahim Bouftou, Mehdi El Bouchti, Aicha Boukhriss, Said Gmouh, Sanaa Majid
Summary: The dissolution of cotton fiber was studied using ionic liquids with a functionalized imidazolium cation. Two ionic liquids, IL-acid and IL-amide, were synthesized and used to completely dissolve 5 wt% cotton fibers in 3 h at room temperature. Characterization of the regenerated cellulose showed reduced crystallinity and a transition from cellulose I to cellulose II. The produced ionic liquids were considered as competitive solvents for dissolving cellulose.
Article
Chemistry, Multidisciplinary
Christopher J. Serpell, Ah Young Park, Carol V. Robinson, Paul D. Beer
Summary: A novel catenated system dense in cationic hydrogen bonding imidazolium units was described, showing a preference for binding of bromide over other halides under aqueous conditions, overcoming basicity and Hofmeister trends. This is the first example of an imidazolium-based catenane acting as an anion host through C-H hydrogen bonding.
CHEMICAL COMMUNICATIONS
(2021)
Article
Electrochemistry
Sarwar Ahmad Pandit, Sajad Ahmad Bhat, Pravin P. Ingole, Mohsin Ahmad Bhat
Summary: The study demonstrates that aqueous micellar solutions can significantly enhance the electrocatalytic efficiency of VB12 for electroreduction reactions. By employing extensive voltammetric investigations, it was found that the enhancement can reach up to several thousand to tens of thousands times. This finding is of great importance for eco-friendly electro-detoxification of water insoluble halocarbons in aqueous phase.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Anabel E. Lanterna, Maria F. Torresan, Rodrigo A. Iglesias, Eduardo A. Coronado, Alejandro M. Granados
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Physical
M. Virginia Bravo, O. Fernando Silva, Claudia Adam, Alejandro M. Granados
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Chemistry, Physical
Laura Rossi, Claudio R. Krapacher, Alejandro M. Granados
MOLECULAR CATALYSIS
(2020)
Article
Chemistry, Physical
Elisa Herrera, Julieta Riva, Soledad Aprea, O. Fernando Silva, Paula G. Bercoff, Alejandro M. Granados
Summary: In this study, the catalytic performance of FePd nanowires with different compositions was investigated through functionalization and analysis of reaction rate constants. The results showed that Fe55Pd45 nanowires exhibited the highest catalytic activity, while Fe65Pd35 nanowires showed similar performance despite their lower Pd content. The presence of Fe atoms and the formation of an fcc phase in the alloy may contribute to the synergistic effect on catalytic activity.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
