Long-range ordered lyotropic liquid crystals in intermediate-range ordered protic ionic liquid used as templates for hierarchically porous silica

2012 ◽  
Vol 22 (19) ◽  
pp. 10069 ◽  
Author(s):  
Zhengfei Chen ◽  
Tamar L. Greaves ◽  
Rachel A. Caruso ◽  
Calum J. Drummond
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Long Range ◽  
Porous Silica ◽  
Lyotropic Liquid Crystals ◽  
Protic Ionic Liquid ◽  
Hierarchically Porous ◽  
Intermediate Range

Synergic effects of a protic ionic liquid on P123 mixed micelles for inducing hierarchical porous materials

RSC Advances ◽  
2015 ◽  
Vol 5 (66) ◽  
pp. 53267-53274 ◽  
Author(s):  
Shuo Zhao ◽  
Xiaoli Sheng ◽  
Yuming Zhou ◽  
Man He ◽  
Xiaoqin Fu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Porous Materials ◽  
Formation Mechanism ◽  
Mixed Micelles ◽  
Porous Silica ◽  
Protic Ionic Liquid ◽  
Hierarchical Porous

Postulated formation mechanism of hierarchical porous silica.

scholarly journals Fatty Acid-Derived Ionic Liquid Lubricant. Protic Ionic Liquid Crystals as Protic Ionic Liquid Additives

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 710 ◽  
Author(s):  
María-Dolores Avilés ◽  
Ramón Pamies ◽  
José Sanes ◽  
Francisco-José Carrión ◽  
María-Dolores Bermúdez
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Crystal ◽  
Fatty Acid ◽  
Liquid Crystals ◽  
Water Evaporation ◽  
Protic Ionic Liquid ◽  
X Ray ◽  
Sliding Surfaces ◽  
Ionic Liquid Crystals

Fatty acids are natural products which have been studied as green lubricants. Ionic liquids are considered efficient friction reducing and wear preventing lubricants and lubricant additives. Fatty acid-derived ionic liquids have shown potential as neat lubricant and additives. Protic ionic liquid crystals (PILCs) are protic ionic liquids (PILs) where cations and anions form ordered mesophases that show liquid crystalline behavior. The adsorption of carboxylate units on sliding surfaces can enhance the lubricant performance. Ionic liquid crystal lubricants with longer alkyl chains can separate sliding surfaces more efficiently. However, they are usually solid at room temperature and, when used as additives in water, transitions to high friction coefficients and wear rates, with tribocorrosion processes occur when water evaporation takes place at the interface. In order to avoid these inconveniences, in the present work, a protic ammonium palmitate (DPA) ionic liquid crystal has been added in 1 wt.% proportion to a short chain citrate ionic liquid (DCi) with the same protic ammonium cation. A spin coated layer of (DCi + DPA) was deposited on AISI316L steel surface before the sliding test against sapphire ball. Synergy between DCi PIL and DPA PILC additive reduces friction coefficient and wear rate, without tribocorrosion processes, as shown by scanning electron microscopy (SEM)/energy dispersive X-ray microanalysis (EDX) and X-ray photoelectron spectroscopy (XPS) results.

Phase equilibrium and physical properties of biobased ionic liquid mixtures

2018 ◽  
Vol 20 (9) ◽  
pp. 6469-6479 ◽  
Author(s):  
Ariel A. C. Toledo Hijo ◽  
Guilherme J. Maximo ◽  
Rosiane L. Cunha ◽  
Felipe H. S. Fonseca ◽  
Lisandro P. Cardoso ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Phase Equilibrium ◽  
Liquid Crystals ◽  
Physical Properties ◽  
Liquid Mixtures ◽  
Protic Ionic Liquid ◽  
Natural Sources ◽  
Ionic Liquid Crystals

Protic ionic liquid crystals (PILCs) obtained from natural sources are promising compounds due to their peculiar properties and sustainable appeal.

Enhanced energy transfer efficiency and stability of europium β-diketonate complex in ionic liquid-based lyotropic liquid crystals

2015 ◽  
Vol 17 (31) ◽  
pp. 20322-20330 ◽  
Author(s):  
Sijing Yi ◽  
Jiao Wang ◽  
Xiao Chen
Keyword(s):  
Ionic Liquid ◽  
Energy Transfer ◽  
Liquid Crystals ◽  
Hydrogen Bonds ◽  
Self Assembly ◽  
Energy Transfer Efficiency ◽  
Lyotropic Liquid Crystals ◽  
The Self ◽  
Transfer Efficiency ◽  
Imidazolium Cations

The self-assembly of luminescent lyotropic liquid crystals with europium β-diketonate complex confined within via hydrogen bonds between P123 and imidazolium cations is demonstrated.

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