Amino Acid-derived Protic Ionic Liquids: Physicochemical Properties and Behaviour as Amphiphile Self-assembly Media

2011 ◽  
Vol 64 (2) ◽  
pp. 180 ◽  
Author(s):  
Jiayi Wang ◽  
Tamar L. Greaves ◽  
Danielle F. Kennedy ◽  
Asoka Weerawardena ◽  
Gonghua Song ◽  
...  

The thermal phase transitions and physicochemical properties of a series of 21 amino acid-derived protic ionic liquids and four protic molten salts have been investigated. Structure–property comparisons for this series were investigated for alkyl- and cyclic amino acid cations, and ethoxy and methoxy groups on the cation, combined with nitrate or various carboxylate-containing anions. All the protic fused salts were found to be ‘fragile’. Most of the protic fused salts exhibited a glass transition, with the transition temperatures ranging from –90° to –42°C. Viscosities and conductivities ranged from 0.03 to 15.46 Pa s and 0.02 to 2.20 mS cm–1 at 25°C respectively. The protic ionic liquids alanine methyl ester glycolate, proline methyl ester nitrate, and proline methyl ester glycolate were found to be capable of supporting amphiphile self-assembly. Lamellar or hexagonal liquid crystalline phases were observed with the cationic surfactant hexadecyltrimethylammonium bromide and the non-ionic surfactant Myverol 18–99K.

2008 ◽  
Vol 112 (3) ◽  
pp. 896-905 ◽  
Author(s):  
Tamar L. Greaves ◽  
Asoka Weerawardena ◽  
Irena Krodkiewska ◽  
Calum J. Drummond

2012 ◽  
Vol 14 (22) ◽  
pp. 7981 ◽  
Author(s):  
Yan Shen ◽  
Danielle F. Kennedy ◽  
Tamar L. Greaves ◽  
Asoka Weerawardena ◽  
Roger J. Mulder ◽  
...  

2016 ◽  
Vol 415 ◽  
pp. 1-7 ◽  
Author(s):  
Gyanendra Sharma ◽  
Ramesh L. Gardas ◽  
Alberto Coronas ◽  
G. Venkatarathnam

2011 ◽  
Vol 47 (47) ◽  
pp. 12676 ◽  
Author(s):  
Muhammed Shah Miran ◽  
Hiroshi Kinoshita ◽  
Tomohiro Yasuda ◽  
Md. Abu Bin Hasan Susan ◽  
Masayoshi Watanabe

2019 ◽  
Vol 21 (13) ◽  
pp. 6810-6827 ◽  
Author(s):  
Dilek Yalcin ◽  
Calum J. Drummond ◽  
Tamar L. Greaves

High throughput methods were used to investigate ionic liquid containing solutions to provide systematic data of a broad compositional space. We have principally focused on the surface tension, apparent pH and liquid nanostructure to identify potential self-assembly and protein stabilizing ability of solvent systems.


Soft Matter ◽  
2020 ◽  
Vol 16 (41) ◽  
pp. 9456-9470
Author(s):  
Dilek Yalcin ◽  
Calum J. Drummond ◽  
Tamar L. Greaves

Protic ionic liquids (PILs) are the largest and most tailorable known class of non-aqueous solvents which possess the ability to support amphiphile self-assembly.


2019 ◽  
Vol 21 (1) ◽  
pp. 418-426 ◽  
Author(s):  
Muhammed Shah Miran ◽  
Mahfuzul Hoque ◽  
Tomohiro Yasuda ◽  
Seiji Tsuzuki ◽  
Kazuhide Ueno ◽  
...  

A series of protic ionic liquids (PILs) are prepared by neutralisation of bis(trifluoromethanesulfonyl)amide acid (H[NTf2]) with various amines, and the properties (especially thermal stability and ionicity) are compared with those of PILs from 1,8-diazabicyclo[5.4.0]-7-undecene (DBU) and various acids.


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