Substitution effect in reversible gel-liquid phase transformation polyoxometalate ionic liquid compounds

2016 ◽  
Vol 45 (28) ◽  
pp. 11256-11260 ◽  
Author(s):  
Xuefei Wu ◽  
Huaxue Cai ◽  
Qingyin Wu ◽  
Wenfu Yan
Keyword(s):  
Ionic Liquid ◽  
Phase Transformation ◽  
Ionic Liquids ◽  
Liquid Phase ◽  
Physicochemical Properties ◽  
Substitution Effect ◽  
High Conductivity ◽  
Reversible Gel

The substitution effect on a series of POM-type ionic liquids, has been investigated. The physicochemical properties of the ILs are highly related to their structures. When protons are substituted for ammonium, high conductivity and better thermostability are observed.

scholarly journals Ionic liquids and deep eutectic solvents for the recovery of phenolic compounds: effect of ionic liquids structure and process parameters

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 12398-12422
Author(s):  
Amir Sada Khan ◽  
Taleb H. Ibrahim ◽  
Nabil Abdel Jabbar ◽  
Mustafa I. Khamis ◽  
Paul Nancarrow ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Phenolic Compounds ◽  
Liquid Phase ◽  
Aqueous Phase ◽  
Process Parameters ◽  
Deep Eutectic Solvents

Extraction of phenol from aqueous phase to ionic liquid phase.

Poly(ionic liquid)s with controlled architectures and their use in the making of ionogels with high conductivity and tunable rheological properties

2016 ◽  
Vol 7 (43) ◽  
pp. 6608-6616 ◽  
Author(s):  
H. Srour ◽  
M. Leocmach ◽  
V. Maffeis ◽  
A. C. Ghogia ◽  
S. Denis-Quanquin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Rheological Properties ◽  
High Conductivity ◽  
Cross Linking ◽  
Poly Ionic Liquid

We describe the preparation as well as the electrochemical and mechanical properties of a series of novel well-defined poly(ionic liquids) (PILs) featuring a finely tuned cross-linking ratio.

Preconcentration and Determination of Aromatic Amines with Temperature-Controlled Ionic Liquid Dispersive Liquid Phase Microextraction in Combination with High Performance Liquid Chromatography

2012 ◽  
Vol 95 (5) ◽  
pp. 1534-1540 ◽  
Author(s):  
Qingxiang Zhou ◽  
Yuantuan Gao ◽  
Junping Xiao ◽  
Guohong Xie
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Phase ◽  
Aromatic Amines ◽  
High Performance ◽  
Correlation Coefficients ◽  
Detection Sensitivity ◽  
Liquid Phase Microextraction ◽  
Temperature Controlled

Abstract This paper reports a new method for the determination of aromatic amines with temperature-controlled ionic liquid dispersive liquid-phase microextraction in combination with HPLC and results of investigation of the influence of anions in ionic liquids on the extraction performance. In these experiments, 1-octyl-3-methylimidazolium hexafluorophosphate ([C8MIM][PF6]), 1-octyl-3-methylimidazolium bis (trifluoromethanesulfonyl) imide ([C8MIM][NTf2]), and 1-octyl-3-methylimidazolium tetrafluoroborate ([C8MIM][BF4]) were used as the extraction solvents for the investigation of the effect of anions in ionic liquids. Other parameters affecting the microextraction performance were also investigated. Under the optimal conditions, the proposed method had good linearity over the concentration ranges of 1.0–100 μg/L for 2, 4-dimethylaniline, 2-chloroanline, and N,N-dimethylaniline, and 1.5–150 μg/L for N,N-dimethylaniline and alpha-naphthylamine, with excellent correlation coefficients (R2 ≥ 0.999), excellent detection sensitivity with LODs (S/N = 3) in the range of 0.39–0.63 μg/L, and precision in the range of 3.2–5.4% RSD (n = 6). Real water samples were analyzed with the established method, and good spike recoveries in the range of 86.3 to 98.9% were obtained. These results indicated that this method would be useful in the routine analysis of such pollutants.

Functionalized Ionic Liquids as Lubricants for Steel-Steel Contact

2011 ◽  
Vol 138-139 ◽  
pp. 630-634 ◽  
Author(s):  
Li Ye Zhu ◽  
Li Gong Chen ◽  
Xin Yang ◽  
Hong Bin Song
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Physicochemical Properties ◽  
Tribological Properties ◽  
Friction And Wear ◽  
Friction Mechanisms ◽  
Ester Group ◽  
Friction Reducing

A new series of functionalized ionic liquids containing ester-group were synthesized through a typical two-step way. The physicochemical properties of the functionalized ionic liquids were studied and the tribological properties of them as lubricants for steel-steel contact were evaluated on an SRV friction and wear tester and compared with the perfluoroalkylpolyether (PFPE), a low-volatility and fluorine containing lubricant, and a conventional ionic liquid, 1-butyl-3-methy imidazolium tetrafluoroborate (LB104), which is nonfunctionalized. Results showed that all the ionic liquids studied in this paper have better lubricities than PFPE as lubricants for steel-steel friction pairs. Functionalized ionic liquids show worse friction reducing abilities at relatively lower loads, which could be ascribed to their higher viscosities, but they always exhibit better anti-wear abilities than LB104. The possible friction mechanisms were discussed.

Physicochemical properties of pentaglyme–sodium bis(trifluoromethanesulfonyl)amide solvate ionic liquid

2014 ◽  
Vol 16 (23) ◽  
pp. 11737-11746 ◽  
Author(s):  
Shoshi Terada ◽  
Toshihiko Mandai ◽  
Risa Nozawa ◽  
Kazuki Yoshida ◽  
Kazuhide Ueno ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Physicochemical Properties ◽  
Room Temperature ◽  
Room Temperature Ionic Liquids

An equimolar complex of pentaglyme (G5) and sodium bis(trifluoromethanesulfonyl)amide (Na[TFSA]) behaves like room-temperature ionic liquids and is a promising electrolyte for Na-ion batteries.

Ionic liquid entrapment by an electrospun polymer nanofiber matrix as a high conductivity polymer electrolyte

RSC Advances ◽  
2015 ◽  
Vol 5 (60) ◽  
pp. 48217-48223 ◽  
Author(s):  
R. S. Datta ◽  
S. M. Said ◽  
S. R. Shahrir ◽  
Norbani Abdullah ◽  
M. F. M. Sabri ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Polymer Electrolyte ◽  
Conductive Polymer ◽  
High Conductivity ◽  
Polymer Nanofibers ◽  
Polymer Nanofiber

Through external doping, novel conductive polymer nanofibers were successfully fabricated using ionic liquids.

scholarly journals Processes and Properties of Ionic Liquid-Modified Nanofiller/Polymer Nanocomposites—A Succinct Review

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 480
Author(s):  
Ahmad Adlie Shamsuri ◽  
Siti Nurul Ain Md. Jamil ◽  
Khalina Abdan
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Physicochemical Properties ◽  
Polymer Composites ◽  
Polymer Nanocomposites ◽  
Polymer Composite ◽  
Chemical Properties ◽  
The Many

Ionic liquids can typically be synthesized via protonation, alkylation, metathesis, or neutralization reactions. The many types of ionic liquids have increased their attractiveness to researchers for employment in various areas, including in polymer composites. Recently, ionic liquids have been employed to modify nanofillers for the fabrication of polymer nanocomposites with improved physicochemical properties. In this succinct review, four types of imidazolium-based ionic liquids that are employed as modifiers—specifically alkylimidazolium halide, alkylimidazolium hexafluorophosphate, alkylimidazolium tetrafluoroborate, and alkylimidazolium bistriflimide—are reviewed. Additionally, three types of ionic liquid-modified nanofiller/polymer nanocomposites—namely ionic liquid-nanofiller/thermoplastic nanocomposites, ionic liquid-nanofiller/elastomer nanocomposites, and ionic liquid-nanofiller/thermoset nanocomposites—are described as well. The effect of imidazolium-based ionic liquids on the thermo-mechanico-chemical properties of the polymer nanocomposites is also succinctly reviewed. This review can serve as an initial guide for polymer composite researchers in modifying nanofillers by means of ionic liquids for improving the performance of polymer nanocomposites.

Synthesis and characterization of a supported ionic-liquid phase catalyst with a dual-mesoporous structure derived from poly(ionic liquids) and P123

2019 ◽  
Vol 43 (7) ◽  
pp. 2899-2907
Author(s):  
Beibei Wang ◽  
Xiaoli Sheng ◽  
Yuming Zhou ◽  
Huaying Gao ◽  
Zhiying Zhu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Phase ◽  
Heterogeneous Catalyst ◽  
High Efficiency ◽  
Mesoporous Structure ◽  
Synthesis And Characterization ◽  
Excellent Performance ◽  
Supported Ionic Liquid

A novel heterogeneous catalyst with high efficiency and recovery shows excellent performance in the alkylation of o-xylene and styrene.

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