Self-assembly of new surface active ionic liquids based on Aerosol-OT in aqueous media

2014 ◽  
Vol 428 ◽  
pp. 267-275 ◽  
Author(s):  
K. Srinivasa Rao ◽  
Praveen Singh Gehlot ◽  
Tushar J. Trivedi ◽  
Arvind Kumar
2016 ◽  
Vol 69 (11) ◽  
pp. 1254 ◽  
Author(s):  
Jiequn Wu ◽  
Tianxiang Yin ◽  
Shaoxiong Shi ◽  
Weiguo Shen

The systematic investigation of the aggregation behaviours of newly synthesised surface-active ionic liquids 1-alkyl-3-methylimidazolium bis(2-ethylhexyl)sulfosuccinate ([Cnmim][AOT], n = 2, 3, 5, 6, 7) by various techniques is reported. The critical aggregation concentrations (CACs) and the standard Gibbs free energies of aggregation () were determined from measurements on conductivity, fluorescence, and surface tension, which suggested a stronger self-assembly ability in the bulk solution for [Cnmim][AOT] surfactants with longer alkyl chain cations. An interesting structure transition driven by the penetration of the imidazolium cation into the aggregate when n > 4 was found by analysis of the variations of the values of CAC, , the degree of counter ion binding (β), and the micropolarity (I1/I3) immediately after the CAC with changing alkyl chain length of the imidazolium cation, which was further confirmed by 1H NMR measurements.


2021 ◽  
Vol 9 ◽  
Author(s):  
Harsh Kumar ◽  
Gagandeep Kaur

The desire of improving various processes like enhanced oil recovery (EOR), water treatment technologies, biomass extraction, organic synthesis, carbon capture etc. in which conventional surfactants have been traditionally utilized; prompted various researchers to explore the self-assembly and aggregation behavior of different kinds of surface-active molecules. Ionic liquids (ILs) with long alkyl chain present in their structure constitute the advantageous properties of surfactant and ILs, hence termed as surface-active ionic liquids (SAILs). The addition of ILs and SAILs significantly influence the surface-activity and aggregation behavior of industrially useful conventional surfactants. After a brief review of ILs, SAILs and surfactants, the prime focus is made on analyzing the self-assembly of SAILs and the mixed micellization behavior of conventional surfactants with different ILs.


2019 ◽  
Vol 21 (7) ◽  
pp. 1777-1794 ◽  
Author(s):  
Illia V. Kapitanov ◽  
Andrew Jordan ◽  
Yevgen Karpichev ◽  
Marcel Spulak ◽  
Lourdes Perez ◽  
...  

A comprehensive study devoted to designing green surface-active ionic liquids (SAILs) based on the “benign-of-design” approach results in finding greener alternatives.


2018 ◽  
Vol 54 (19) ◽  
pp. 2432-2435 ◽  
Author(s):  
Gurbir Singh ◽  
Manvir Kaur ◽  
Markus Drechsler ◽  
Tejwant Singh Kang

A first report on bilayer architectures from self-assembly of SAILs without any additive in aqueous solutions at very low concentrations.


RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 27370-27377 ◽  
Author(s):  
Panpan Sun ◽  
Lijuan Shi ◽  
Fei Lu ◽  
Liqiang Zheng

The effects of anionic type, cationic structure and alkyl chain length are illustrated to regulate the self-assembly of zwitterionic SAILs.


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