Article
Materials Science, Multidisciplinary
Rocio L. Perez, Caitlan E. Ayala, Michelle M. Opiri, Abdulrahman Ezzir, Guoqiang Li, Isiah M. Warner
Summary: A solvent-based green recycling procedure using ionic liquids and alcohols was reported for the recycling of thermoset epoxy resins and carbon fiber reinforced epoxy composites under mild conditions. The study evaluated the swelling and depolymerization capacity of the materials in the presence of different alkyl-methyl-imidazolium ILs and alcohols. Complete dissolution of both TERs and CFRECs was achieved in 150 minutes at 150 degrees Celsius under atmospheric pressure. Recovery and reuse of the recycled monomer after dissolution were also examined, demonstrating similar mechanical properties to the parent TER and successful recovery of carbon fibers from CFRECs.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Physical
Muzammil Kuddushi, Nehal K. Patel, Jitendra Mata, Omar El Seoud, Naved Malek
Summary: The study reports the synthesis of a novel 1-hexadecyl-3-methyl imidazolium salicylate gelator with thermo-reversible properties and excellent surface activity, which can be widely applied in the field of smart materials design, providing new avenues for the development of novel functional materials.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Vijay Padwal, Aditya Narvekar, Shailesh Dugam, Radhika Pachpore, Prajakta Dandekar, Ratnesh Jain
Summary: Evaluating the stability and biological activity of monoclonal antibodies is crucial for their optimal performance. pH buffers, surfactants, salts, and sugars are commonly used to control aggregation of antibodies. In this study, 2-MIDHP was found to be a potent acid-resistant agent that effectively prevented aggregation of Bevacizumab.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Yuval Simha, Gil Daniels, Amalya Goldman, Elihay Kuniavsky, Dmitry Tsvelikhovsky
Summary: A new strategy for direct access to fully substituted polycyclic imidazolium salts using alpha-enaminones and proline as the reagents is reported. This open-flask operation is a catalyst-, metal-, and Lewis acid-free green process, which does not require an ion-exchange step. It can produce good yields with minimal formation of side products, and is not limited to aryl substituents.
Article
Chemistry, Physical
Ruhao Li, Yi Feng, Pinar Akcora
Summary: This study investigates the mixtures of low polymer concentration IL-polymer electrolytes to improve their conductivity. The ion transport properties of three types of imidazolium-based ionic liquids are examined with the addition of linear poly(methyl methacrylate) (PMMA) homopolymer. The dielectric properties of PMMA/IL mixtures indicate the enhancement of ILs' apparent ionicity, attributed to preferential interactions between PMMA and TFSI- anions. The frequency-dependent conductivity data suggest that ion-dipole coupling interactions between PMMA and IL enhance solvation and increase ionicity by disrupting the cage structure and facilitating fast ion motion of IL.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Jocasta Avila, Chiara Corsini, Cintia M. Correa, Martin Rosenthal, Agilio Padua, Margarida Costa Gomes
Summary: This Perspective highlights the pathways to prepare porous ionic liquids using easily accessible materials for reduced environmental impact. The study demonstrates that suspensions of porous solids are stable in eutectic mixtures, which indicates their potential in preparing porous ionic liquids. Porous ionic liquids maintain the wide electrochemical window observed in their precursor pure ionic liquids, making them suitable for green electrochemical reactions, especially those involving gases with enhanced solubility in the porous suspensions. Furthermore, their capacity as gas-rich media suggests potential sustainable biomedical and pharmaceutical applications, provided that non-toxic, biocompatible ionic liquids and porous solids are utilized.
Article
Chemistry, Applied
Fei Ren, Jinwei Wang, Jinglin Yu, Cheng Zhong, Fengwei Xie, Shujun Wang
Summary: This study demonstrates the synthesis of acetylated maize starches (AMS) with different degrees of substitution (DS) in the presence of ionic liquids (ILs) without catalyst. The DS and reaction efficiency of AMS increase with decreasing alkyl chain length of cations or anions. AMS synthesized in imidazolium-based ILs exhibit higher hydrophobicity and thermal stability. The viscosity of ILs and the interactions between acetic anhydride molecules are crucial for the acetylation of starch.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Applied
Michal Domanski, Jonas Zurauskas, Joshua P. Barham
Summary: A continuous flow auto-frequency tuning single-mode microwave reactor is presented as a powerful platform for synthesizing alkyl imidazolium salts as ionic liquids/ionic liquid precursors. The reactor achieves near-quantitative yields, high productivities, and record space-time yields, and addresses challenges such as viscosity changes, dielectric property changes, and phase separations.
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2022)
Article
Chemistry, Physical
John A. Agwupuye, Hitler Louis, Tomsmith O. Unimuke, Prince David, Emmanuel Ubana, Yusuff L. Moshood
Summary: This study focuses on the stability, reactivity, and electronic interactions of methyl-substituted imidazolium-based ionic liquids. Through a high-level quantum study, it was found that these ILs are stabilized through hydrogen bonds formed between the cation-anion pairs. [MMMIM][HSO4] was identified as the most stable IL among the ones considered, with a higher energy gap between HOMO and LUMO. The addition of anions to cation led to a reduction in absorption maxima and a shift in absorption wavelength of the ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Sweta Jha, Praveenkumar Sappidi
Summary: The results presented in this study contribute to the understanding of the complex interactions between furfural-based compounds and ILs, as well as the challenges in separating 5-HMF from ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Multidisciplinary
Mehmet Ali Topcu, Aydin Rusen, Volkan Kalem, Ozkan Kucuk
Summary: This study aimed to achieve gold leaching from copper anode slime (CAS) using ionic liquid treatment. A novel medium, 1-butyl-3-methyl-imidazolium chloride (BmimCl), was used as the leaching reagent. The effects of various parameters on the leaching efficiency were investigated and optimized. The results showed that a gold leaching efficiency of 61.20% was achieved under the optimal conditions. The statistical analysis revealed that temperature had the greatest impact on gold leaching, followed by time, solid/liquid ratio, and ionic liquid concentration.
Article
Chemistry, Physical
Weibo Han, Gang Zhou, Mengyao Xing, Yang Yang, Xinyuan Zhang, Yanan Miao, Yongmei Wang
Summary: The study found that novel NaSal-imidazole ionic liquids can effectively dissolve coal and reduce particle size, with IL 3 showing the strongest coal-dissolving ability and adsorbing small particles in a neural network-like structure. These interactions improved coal conversion efficiency and provide theoretical guidance for coal production.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Xianguang Zeng, Xingwen Zheng, Lei Guo, Qian Xu, Hui Huang, Bochuan Tan
Summary: This study investigated the corrosion inhibition performance of three eco-friendly corrosion inhibitors on mild steel in H2SO4 medium. Experimental results showed that [BMImB]Br-2 exhibited the best corrosion inhibition efficiency. Theoretical calculations explained the corrosion inhibition mechanism of the inhibitors.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Polymer Science
Kathryn E. O'Harra, Emily M. DeVriese, Erika M. Turflinger, Danielle M. Noll, Jason E. Bara
Summary: This study introduces a series of vinyl-imidazolium-based polyelectrolyte composites modified with multivalent imidazolium-benzene ionic liquids or crosslinked with novel cationic crosslinkers. The composites exhibited enhanced CO2 permeabilities and selectivities against N-2 or CH4, demonstrating the potential for tuning the properties and transport behaviors of ionic polymers using ionic liquid-inspired small molecules.
Article
Chemistry, Multidisciplinary
Harry Biller, Thomas Strassner
Summary: Imidazolium-based ionic liquids are popular for their low viscosity and melting point, but the hydrogen atom at the C2 position can be easily deprotonated. To design an inert ionic liquid, an unreactive alkyl or aryl group needs to be introduced at the C2 position. In this study, a new series of tunable aryl alkyl ionic liquids (TAAILs) with blocked C2 positions were synthesized and compared in terms of physicochemical properties. Additionally, the differences in electrochemical reduction potentials between blocked and unblocked TAAILs were investigated using quantum chemical methods.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)