scholarly journals Tough and stretchable inorganic/organic double network ion gel containing gemini-type ionic liquid as a multiple hydrogen bond cross-linker

RSC Advances ◽  
2019 ◽  
Vol 9 (21) ◽  
pp. 11870-11876 ◽  
Author(s):  
Tomoki Yasui ◽  
Eiji Kamio ◽  
Hideto Matsuyama
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Ionic Liquids ◽  
Double Network ◽  
Multiple Hydrogen Bond ◽  
Ion Gel ◽  
Cross Linker ◽  
Ion Gels

The extensibility and toughness of inorganic/organic double-network ion gels were dramatically increased using gemini-type ionic liquids as a hydrogen bonding-based weak cross-linker.

An amino acid ionic liquid-based tough ion gel membrane for CO2 capture

2015 ◽  
Vol 51 (71) ◽  
pp. 13658-13661 ◽  
Author(s):  
Farhad Moghadam ◽  
Eiji Kamio ◽  
Ayumi Yoshizumi ◽  
Hideto Matsuyama
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Amino Acid ◽  
Co2 Capture ◽  
Double Network ◽  
Ion Gel ◽  
Amino Acid Ionic Liquid

A tough and thin double-network gel membrane containing amino acid ionic liquids as a CO2 carrier exhibited superior CO2 permeability and stability under pressurized conditions.

scholarly journals Preparation of tough, thermally stable, and water-resistant double-network ion gels consisting of silica nanoparticles/poly(ionic liquid)s through photopolymerisation of an ionic monomer and subsequent solvent removal

Soft Matter ◽  
2020 ◽  
Vol 16 (6) ◽  
pp. 1572-1581 ◽  
Author(s):  
Takaichi Watanabe ◽  
Ruri Takahashi ◽  
Tsutomu Ono
Keyword(s):  
Ionic Liquid ◽  
Silica Nanoparticles ◽  
Thermally Stable ◽  
Double Network ◽  
Solvent Removal ◽  
Ionic Monomer ◽  
Ion Gel ◽  
Poly Ionic Liquid ◽  
Ion Gels

A tough, thermally stable, and water-resistant silica nanoparticles/poly(ionic liquid) double-network ion gel was developed.

Correlation Between Ion Gel Characteristics and Performance of Ionic Pressure Sensors

2021 ◽  
Author(s):  
Woo Young Lee ◽  
Yong Min Kim ◽  
Jin Han Kwon ◽  
Hong Chul Moon
Keyword(s):  
Ionic Liquid ◽  
Pressure Sensors ◽  
Convenient Approach ◽  
Ion Gel ◽  
And Performance ◽  
Ion Gels

In this study, a convenient approach is proposed to tune the properties of ion gels by utilizing mixed ionic liquid (IL) systems. Herein, a binary IL system consisting of 1-butyl-3-methylimidazolium...

Computational analysis of the effect of [Tea][Ms] and [Tea][H2PO4] ionic liquids on the structure and stability of Aβ(17–42) amyloid fibrils

2021 ◽  
Vol 23 (11) ◽  
pp. 6695-6709
Author(s):  
D. Gobbo ◽  
A. Cavalli ◽  
P. Ballone ◽  
A. Benedetto
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Ionic Liquids ◽  
Liquid Water ◽  
Computational Analysis ◽  
Amyloid Fibrils ◽  
Aβ Peptides ◽  
Structure And Stability ◽  
Water Solutions ◽  
Kinetics Of

Tight coordination of peptides by organic anions driven by hydrogen bonding affects the fibrillation kinetics of Aβ peptides in ionic liquid/water solutions.

scholarly journals Hydrogen bond basicity of ionic liquids and molar entropy of hydration of salts as major descriptors in the formation of aqueous biphasic systems

2018 ◽  
Vol 20 (20) ◽  
pp. 14234-14241 ◽  
Author(s):  
Helena Passos ◽  
Teresa B. V. Dinis ◽  
Ana Filipa M. Cláudio ◽  
Mara G. Freire ◽  
João A. P. Coutinho
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Predictive Model ◽  
Aqueous Biphasic Systems ◽  
Molar Entropy ◽  
Liquid Salt ◽  
Hydrogen Bond Basicity ◽  
Aqueous Biphasic ◽  
Biphasic Systems

A predictive model for ionic liquid/salt aqueous biphasic systems’ formation based on the hydrogen bond basicity of ionic liquids and molar entropy of hydration of salts.

Inorganic/organic double-network ion gel membrane with a high ionic liquid content for CO2 separation

2020 ◽  
Vol 53 (1) ◽  
pp. 137-147 ◽  
Author(s):  
Eiji Kamio ◽  
Masayuki Minakata ◽  
Yu Iida ◽  
Tomoki Yasui ◽  
Atsushi Matsuoka ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Co2 Separation ◽  
Liquid Content ◽  
Double Network ◽  
Ion Gel

scholarly journals Synthesis of the symmetrical methylene diesters from carboxylic ionic liquids

2017 ◽  
Vol 95 (7) ◽  
pp. 744-750 ◽  
Author(s):  
D. Gómora-Herrera ◽  
I.V. Lijanova ◽  
O. Olivares-Xometl ◽  
A. Toscano ◽  
N.V. Likhanova
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Ionic Liquids ◽  
Hydrogen Atom ◽  
Crystal Packing ◽  
Spectroscopic Techniques ◽  
Amine Group ◽  
Carboxylic Group ◽  
Microwave Reactor ◽  
Trimer Formation

The reaction between carboxylic ionic liquids and dichloromethane, which provokes the formation of symmetrical methylene diesters, was carried out. The synthesis of these ionic liquid compounds was carried out in a microwave reactor, and the characterization by spectroscopic techniques of methylene diesters (methylene di-2-furoate, methylene di-2-picolinate, methylene dianthranilate, and methylene dioleate) is described and the crystal structures discussed. The crystal packing of methylene dianthranilate is characterized by trimer formation due to hydrogen bonding via interactions between the hydrogen atom of the primary amine group and the oxygen of the carboxylic group.

Understanding the role of hydrogen bonding in Brønsted acidic ionic liquid-catalyzed transesterification: a combined theoretical and experimental investigation

2016 ◽  
Vol 18 (48) ◽  
pp. 32723-32734 ◽  
Author(s):  
Kaixin Li ◽  
Yibo Yan ◽  
Jun Zhao ◽  
Junxi Lei ◽  
Xinli Jia ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Catalytic Activity ◽  
Ionic Liquids ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid ◽  
Acidic Ionic Liquids ◽  
Hydrogen Bonding Networks

The intra- and inter-hydrogen bonding networks that govern the catalytic activity of Brønsted acidic ionic liquids were identified.

scholarly journals Two-Dimensional FTIR as a Tool to Study the Chemical Interactions within Cellulose-Ionic Liquid Solutions

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Kalyani Kathirgamanathan ◽  
Warren J. Grigsby ◽  
Jafar Al-Hakkak ◽  
Neil R. Edmonds
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Ionic Liquids ◽  
Network Structure ◽  
Solution Viscosity ◽  
Two Dimensional ◽  
Ambient Temperatures ◽  
Heating And Cooling ◽  
Solution Rheology ◽  
Higher Temperature

In this study two-dimensional FTIR analysis was applied to understand the temperature effects on processing cellulose solutions in imidazolium-based ionic liquids. Analysis of the imidazolium ionνC2–H peak revealed hydrogen bonding within cellulose solutions to be dynamic on heating and cooling. The extent of hydrogen bonding was stronger on heating, consistent with greater ion mobility at higher temperature when the ionic liquid network structure is broken. At ambient temperatures a blue shiftedνC2–H peak was indicative of greater cation-anion interactions, consistent with the ionic liquid network structure. Both cellulose and water further impact the extent of hydrogen bonding in these solutions. The FTIR spectral changes appeared gradual with temperature and contrast shear induced rheology changes which were observed on heating above 70°C and cooling below 40°C. The influence of cellulose on solution viscosity was not distinguished on initial heating as the ionic liquid network structure dominates rheology behaviour. On cooling, the quantity of cellulose has a greater influence on solution rheology. Outcomes suggest processing cellulose in ionic liquids above 40°C and to reduce the impacts of cation-anion effects and enhance solubilisation, processing should be done at 70°C.

scholarly journals Ionic Liquids and Water: Hydrophobicity vs. Hydrophilicity

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7159
Author(s):  
Rita F. Rodrigues ◽  
Adilson A. Freitas ◽  
José N. Canongia Lopes ◽  
Karina Shimizu
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Ionic Liquids ◽  
Aqueous Media ◽  
Liquid Solution ◽  
Chemical Processes ◽  
Processes And Reactions ◽  
High Hydrogen ◽  
Ionic Liquid Solution ◽  
Dynamics Simulations

Many chemical processes rely extensively on organic solvents posing safety and environmental concerns. For a successful transfer of some of those chemical processes and reactions to aqueous media, agents acting as solubilizers, or phase-modifiers, are of central importance. In the present work, the structure of aqueous solutions of several ionic liquid systems capable of forming multiple solubilizing environments were modeled by molecular dynamics simulations. The effect of small aliphatic chains on solutions of hydrophobic 1-alkyl-3-methylimidazolium bis(trifluoromethyl)sulfonylimide ionic liquids (with alkyl = propyl [C3C1im][NTf2], butyl [C4C1im][NTf2] and isobutyl [iC4C1im][NTf2]) are covered first. Next, we focus on the interactions of sulphonate- and carboxylate-based anions with different hydrogenated and perfluorinated alkyl side chains in solutions of [C2C1im][CnF2n+1SO3], [C2C1im][CnH2n+1SO3], [C2C1im][CF3CO2] and [C2C1im][CH3CO2] (n = 1, 4, 8). The last system considered is an ionic liquid completely miscible with water that combines the cation N-methyl-N,N,N-tris(2-hydroxyethyl)ammonium [N1 2OH 2OH 2OH]+, with high hydrogen-bonding capability, and the hydrophobic anion [NTf2]–. The interplay between short- and long-range interactions, clustering of alkyl and perfluoroalkyl tails, and hydrogen bonding enables a wealth of possibilities in tailoring an ionic liquid solution according to the needs.

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