A new class of double alkyl-substituted, liquid crystalline imidazolium ionic liquids—a unique combination of structural features, viscosity effects, and thermal properties

2009 ◽  
pp. 7405 ◽  
Author(s):  
Xinjiao Wang ◽  
Frank W. Heinemann ◽  
Mei Yang ◽  
Berthold U. Melcher ◽  
Melinda Fekete ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Thermal Properties ◽  
Liquid Crystalline ◽  
Structural Features ◽  
Unique Combination ◽  
Imidazolium Ionic Liquids ◽  
New Class ◽  
Viscosity Effects

scholarly journals Synthesis, conformational studies, vibrational spectra and thermal properties, of new 1,4-(phenylenebis(methylene) bis(methyl-imidazolium) ionic liquids

2020 ◽  
Vol 1220 ◽  
pp. 128731
Author(s):  
Mostefa Boumediene ◽  
Boumediene Haddad ◽  
Annalisa Paolone ◽  
Mohammed Amin Assenine ◽  
Didier Villemin ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Thermal Properties ◽  
Vibrational Spectra ◽  
Conformational Studies ◽  
Imidazolium Ionic Liquids

Thermal properties of imidazolium ionic liquids

2000 ◽  
Vol 357-358 ◽  
pp. 97-102 ◽  
Author(s):  
Helen L Ngo ◽  
Karen LeCompte ◽  
Liesl Hargens ◽  
Alan B McEwen
Keyword(s):  
Ionic Liquids ◽  
Thermal Properties ◽  
Imidazolium Ionic Liquids

Nature of the C2-methylation effect on the properties of imidazolium ionic liquids

2017 ◽  
Vol 19 (7) ◽  
pp. 5326-5332 ◽  
Author(s):  
Ana S. M. C. Rodrigues ◽  
Carlos F. R. A. C. Lima ◽  
João A. P. Coutinho ◽  
Luís M. N. B. F. Santos
Keyword(s):  
Ionic Liquids ◽  
Transport Properties ◽  
Structural Features ◽  
Imidazolium Ionic Liquids

Methylation at the C2 position of 1,3-disubstituted imidazolium-based ionic liquids (ILs) is one of the structural features that has gained attention due to its drastic impact on thermophysical and transport properties.

scholarly journals Designing Imidazolium Poly(amide-amide) and Poly(amide-imide) Ionenes and Their Interactions with Mono- and Tris(imidazolium) Ionic Liquids

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1254
Author(s):  
Kathryn E. O’Harra ◽  
Danielle M. Noll ◽  
Irshad Kammakakam ◽  
Emily M. DeVriese ◽  
Gala Solis ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Thermal Properties ◽  
Small Molecules ◽  
Self Assembly ◽  
High Performance ◽  
Structural Changes ◽  
Intermolecular Forces ◽  
Polymer Composition ◽  
Structural Effects ◽  
Imidazolium Ionic Liquids

Here we introduce the synthesis and thermal properties of a series of sophisticated imidazolium ionenes with alternating amide-amide or amide-imide backbone functionality, and investigate the structural effects of mono(imidazolium) and unprecedented tris(imidazolium) ionic liquids (ILs) in these ionenes. The new set of poly(amide-amide) (PAA) and poly(amide-imide) (PAI) ionenes represent the intersection of conventional high-performance polymers with the ionene archetype–presenting polymers with alternating functional and ionic elements precisely sequenced along the backbone. The effects of polymer composition on the thermal properties and morphology were analyzed. Five distinct polymer backbones were synthesized and combined with a stoichiometric equivalent of the IL 1-benzyl-3-methylimidazolium bistriflimide ([Bnmim][Tf2N]), which were studied to probe the self-assembly, structuring, and contributions of intermolecular forces when IL is added. Furthermore, three polyamide (PA) or polyimide (PI) ionenes with simpler xylyl linkages were interfaced with [Bnmim][Tf2N] as well as a novel amide-linked tris(imidazolium) IL, to demonstrate the structural changes imparted by the inclusion of functional, ionic additives dispersed within the ionene matrix. This work highlights the possibilities for utilizing concepts from small molecules which exhibit supramolecular self-assembly to guide creative design and manipulate the structuring of ionenes.

Combined effect of ether and siloxane substituents on imidazolium ionic liquids

RSC Advances ◽  
2015 ◽  
Vol 5 (80) ◽  
pp. 64821-64831 ◽  
Author(s):  
Santosh N. Chavan ◽  
Debaprasad Mandal
Keyword(s):  
Ionic Liquids ◽  
Thermal Properties ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Degree Of Freedom ◽  
Combined Effect ◽  
Size Factor ◽  
Imidazolium Ionic Liquids ◽  
Imidazolium Cations ◽  
Coulombic Attraction

The combined effect of ether and siloxane substituents on imidazolium cations helps overcome the Coulombic attraction, van der Waals forces, size factor and conformational degree of freedom, and exerts an impact on viscosity, density and thermal properties of ionic liquids.

scholarly journals Carbon dioxide capture using water-imidazolium ionic liquids-amines ternary systems

2021 ◽  
Vol 105 ◽  
pp. 103210
Author(s):  
Mariusz Zalewski ◽  
Tomasz Krawczyk ◽  
Agnieszka Siewniak ◽  
Aleksander Sobolewski
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquids ◽  
Carbon Dioxide Capture ◽  
Ternary Systems ◽  
Imidazolium Ionic Liquids

Degradation of imidazolium ionic liquids in a thermally activated persulfate system

2021 ◽  
Vol 412 ◽  
pp. 128624
Author(s):  
Tian-Lin Ren ◽  
Xi-Wen Ma ◽  
Xiao-Qiong Wu ◽  
Li Yuan ◽  
Yang-Li Lai ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Imidazolium Ionic Liquids ◽  
Thermally Activated ◽  
Activated Persulfate

α−Fe2O3/rGO cooperated with tri-alkyl-substituted-imidazolium ionic liquids for enhancing oxygen sensing

2021 ◽  
Vol 341 ◽  
pp. 130029
Author(s):  
Wenyan Yin ◽  
Khaled Tawfik Alali ◽  
Milin Zhang ◽  
Jingyuan Liu ◽  
Dalei Song ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Oxygen Sensing ◽  
Imidazolium Ionic Liquids
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