Effect of temperature and composition on the surface tension and thermodynamic properties of binary mixtures of 1-butyl-3-methylimidazolium thiocyanate with alcohols

Domańska, Urszula; Królikowska, Marta

doi:10.1016/j.jcis.2010.04.060

Cited by 66 publications

(60 citation statements)

References 41 publications

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“…The average relative deviations between the data collected in this work and those already reported [41][42][43][44][45][46][47][48][49] are depicted in Figure 2. The absolute average relative deviations between the data collected in this work and those reported in the literature are 2.…”

Section: Surface Tensionmentioning

confidence: 71%

“…The surface tension of the ILs investigated was determined at atmospheric pressure in the temperature range from (298.15 to 343.15) K. Surface tension data for imidazolium-based ILs with anions functionalized with cyano groups present considerable discrepancies among different authors [41][42][43][44][45][46][47][48][49]. The average relative deviations between the data collected in this work and those already reported [41][42][43][44][45][46][47][48][49] are depicted in Figure 2.…”

Section: Surface Tensionmentioning

confidence: 81%

“…Ionic structures and cation-anion matrix of the studied ILs: ✔, ILs studied; ✘, ILs not studied. Relative deviations between the experimental (γ exp ) and literature (γ lit ) surface tension data: different symbols represent different literature sources while the same color corresponds to the same IL [41][42][43][44][45][46][47][48][49]. Europe PMC Funders Author Manuscripts a Standard uncertainties u are u(T) = 0.1 K and the combined expanded uncertainty U c is U c (γ) = 0.3 mN·m -1 , at the 95% confidence level (k ≈ 2).…”

Section: Supplementary Materialsmentioning

confidence: 99%

See 2 more Smart Citations

Surface tensions of ionic liquids: Non-regular trend along the number of cyano groups

Almeida

Carvalho

Kurnia

et al. 2016

Fluid Phase Equilibria

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Ionic liquids (ILs) with cyano-functionalized anions are a set of fluids that are still poorly characterized despite their remarkably low viscosities and potential applications. Aiming at providing a comprehensive study on the influence of the number of -CN groups through the surface tension and surface organization of ILs, the surface tensions of imidazolium-based ILs with cyano-functionalized anions were determined at atmospheric pressure and in the ( Therefore, the surface tension of this homologous series does not decrease with the increase of the number of -CN groups at the anion as has been previously shown by studies performed with a more limited matrix of ILs. A maximum in the surface tension and critical temperature was observed for [N(CN) 2 ]-based ILs. Furthermore, a minimum in the surface entropy, indicative of a highly structured surface, was found for the same class of ILs. All these evidences seem to be a result of stronger hydrogen-bonding interactions occurring in [N(CN) 2 ]-based ILs, when compared with the remaining CN-based counterparts, and as sustained by cation-anion interaction energies derived from the Conductor Like Screening Model for Real Solvents (COSMO-RS).

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Section: Surface Tensionmentioning

confidence: 71%

Section: Surface Tensionmentioning

confidence: 81%

Section: Supplementary Materialsmentioning

confidence: 99%

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Surface tensions of ionic liquids: Non-regular trend along the number of cyano groups

Almeida

Carvalho

Kurnia

et al. 2016

Fluid Phase Equilibria

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“…This is due to the saturation of the air-liquid interface with IL molecules. As it can be seen from the graph, the CMC and surface tension at the CMC (c CMC ) decreases with increasing alkyl chain length owing to the increasing hydrophobic character of IL [35]. This shows that denser packing and aggregation of IL molecules at the interface is favoured and surface tension is more effectively reduced with increase in the chain length of the IL molecule.…”

Section: Spectroscopic Characterization Of Ionic Liquidsmentioning

confidence: 88%

Synthesis, Characterization, Surface Properties and Micellization Behaviour of Imidazolium‐based Ionic Liquids

Pillai

Pal

2017

J Surfact & Detergents

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Ionic liquids (IL) have emerged as a prospective new material for a wide range of industrial applications, owing to their unique structures and properties. Hence, understanding the structure–property relationships of IL is very important for both fundamental and industrial applications. In this study, a series of imidazolium‐based IL with different chain lengths, namely C8mimBF4, C10mimBF4 and C12mimBF4, were synthesized. Their molecular structures were confirmed by proton nuclear magnetic resonance (1H NMR) and Fourier transform infrared (FTIR) analysis. Thermal gravimetric analysis (TGA) revealed that the IL synthesized were thermally stable in the desired temperature range. Dynamic light scattering (DLS) results of IL was analyzed in order to understand the effect of alkyl length on micellar size. Conductivity and surface tension measurements were carried out to determine the adsorption and aggregation characteristics in aqueous solutions. The influences of temperature as well as alkyl chain length on viscosity were also investigated. Surface adsorption parameters such as surface excess, minimum area, effectiveness and efficiency were also determined from equilibrium surface tension data. A careful analysis of the thermodynamic aspects of air‐ionic liquid aqueous systems reveals that free energies of adsorption are favoured over micellization for all systems.

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“…The cations are mainly imidazoliums, quaternary ammoniums and pyridiniums. [33]. The aggregation behavior of surfactant molecules in ILs is of great interest both from environmental and academic points of view.…”

Section: Introductionmentioning

confidence: 99%

Conductometric and spectroscopic studies of cetyltrimethylammonium bromide in aqueous solutions of imidazolium based ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate

Kumar

Chadha

2015

Journal of Molecular Liquids

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Effect of temperature and composition on the surface tension and thermodynamic properties of binary mixtures of 1-butyl-3-methylimidazolium thiocyanate with alcohols

Cited by 66 publications

References 41 publications

Surface tensions of ionic liquids: Non-regular trend along the number of cyano groups

Surface tensions of ionic liquids: Non-regular trend along the number of cyano groups

Synthesis, Characterization, Surface Properties and Micellization Behaviour of Imidazolium‐based Ionic Liquids

Conductometric and spectroscopic studies of cetyltrimethylammonium bromide in aqueous solutions of imidazolium based ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate

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