Modulating the mixed micellization of CTAB and an ionic liquid 1-hexadecyl-3-methylimidazollium bromide via varying physical states of ionic liquid

Chadha, Chanda; Singh, Gurbir; Singh, Gurpreet; Kumar, Harsh; Kang, Tejwant Singh

doi:10.1039/c6ra05330k

Cited by 13 publications

(6 citation statements)

References 60 publications

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“…The plot of ln( I 0 / I Q ) vs . [ Q ] is having a straight line, whose slope can be utilized to determine the value of N agg of surface-active molecules (Wang et al, 2007 ; Pal and Pillania, 2015b , 2017 ; Piñeiro et al, 2015 ; Singh and Kang, 2015 ; Chadha et al, 2016 ; Banjare et al, 2017 ; Pal and Punia, 2019b ).…”

Section: Methodsmentioning

confidence: 99%

Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review

Kumar

Kaur

2021

Front. Chem.

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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.

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Section: Methodsmentioning

confidence: 99%

Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review

Kumar

Kaur

2021

Front. Chem.

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“…As the exact determination of the headgroup area ( A ) of the micellar surface is quite difficult, A min values obtained from tensiometry were used instead of A as stated earlier. ,, For the binary mixed surfactant system, the modified form of the Israelachvili equation (eq ) ,,− was used …”

Section: Resultsmentioning

confidence: 99%

“…The micellar and thermodynamic properties of the imidazolium-based surface active ionic liquids , and their mixtures with anionic, nonionic, zwitterionic, and gemini surfactants have been investigated in detail. , However, studies involving ILs and cationic surfactants are scarce with the exception of very few reports. , In general, mixtures of cationic surfactants have, so far, been paid relatively less attention. ,, …”

Section: Introductionmentioning

confidence: 99%

“…34,35 However, studies involving ILs and cationic surfactants are scarce with the exception of very few reports. 36,37 In general, mixtures of cationic surfactants have, so far, been paid relatively less attention. 11,33,38 In this work, the micellar and thermodynamic behavior of the mixed micelles formed in the aqueous mixtures of two cationic surfactants1-hexadecyl-3-methylimidazolium chloride (HDMimCl) and dodecyltrimethylammonium bromide (DTAB)has been investigated in order to shed light on various interactions prevailing in this system.…”

Section: Introductionmentioning

confidence: 99%

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Formation of Mixed Micelle in an Aqueous Mixture of a Surface Active Ionic Liquid and a Conventional Surfactant: Experiment and Modeling

2018

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The aggregation behavior in binary mixtures of two surfactants, 1-hexadecyl-3-methylimidazolium chloride and dodecyltrimethylammonium bromide, has been investigated in aqueous solutions using conductometric, tensiometric, spectrofluorimetric, and zeta potential measurements. The counterion binding, aggregation number, and anisotropy of the micellar environment have been ascertained. The results have been analyzed on the basis of the theories of Clint, Rubingh, and Motomura. The thermodynamic parameters of the micellization process have been evaluated and discussed. The interfacial adsorptions of the mixed surfactants including their surface excesses and headgroup areas have also been evaluated. The existence of an attractive interaction among the constituents of the mixed surfactant systems investigated has been inferred.

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“…For some enthalpograms, however, the initial enthalpy of dilution was considered as the heat of the first injection assuming complete demicellization occurs in the system. 85,86 The change of enthalpy due to the micellization process (ΔH m 0 ) is evaluated from the difference between the ΔH dil 0 (initial) and ΔH dil 0 (f inal) values. Similar enthalpograms have also been observed earlier for other systems also.…”

Section: Isothermal Titration Calorimetry (Itc)mentioning

confidence: 99%

Comparative Study of the Aggregation Behavior of Some Ionic Surfactants with Nonionic Triton X-114 in Water and a Water/2,2,2-Trifluoroethanol Mixture

Banik,

Mondal,

Sardar

et al. 2024

Ind. Eng. Chem. Res.

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The influence of 2,2,2-trifluoroethanol (TFE) on the micellar properties of ionic surfactants hexadecyltrimethylammonium bromide (CTAB), hexadecyltrimethylammonium ptoluenesulfonate (CTAT), sodium dodecyl sulfate (SDS), Nlauroylsarcosine sodium salt (SDDS), and nonionic surfactant Triton X-114 (TX-114) in aqueous solutions was studied using tensiometry, electrical conductivity, fluorimetry, time-resolved fluorescence, and microcalorimetry. With increasing concentrations of TFE, the micellar charge densities of the ionic head groups decrease, causing a decrease in the critical micelle concentration (CMC) of ionic-surfactant solutions (SDS, SDDS, CTAB, and CTAT) in micellar solutions. However, for nonionic surfactant TX-114, the polar headgroup undergoes some conformational changes causing an increase in the value of CMC. Time-resolved fluorescence decay measurements were done to get evidence of penetration of TFE molecules into the stern layer of the micelle. The micellar aggregation number declines with increasing concentration of solvent, indicating a higher concentration of mixed solvent reducing the number of monomers needed for micellization for ionic surfactants, whereas for nonionic TX-114, it indicates some structural changes of the molecule forming the micelle in the presence of TFE.

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Modulating the mixed micellization of CTAB and an ionic liquid 1-hexadecyl-3-methylimidazollium bromide via varying physical states of ionic liquid

Abstract: The physical nature of [C16mim][Br] as monomers/micelles led to different IL–CTAB mixed self-assembled structures.

Cited by 13 publications

References 60 publications

Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review

Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review

Formation of Mixed Micelle in an Aqueous Mixture of a Surface Active Ionic Liquid and a Conventional Surfactant: Experiment and Modeling

Comparative Study of the Aggregation Behavior of Some Ionic Surfactants with Nonionic Triton X-114 in Water and a Water/2,2,2-Trifluoroethanol Mixture

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