Aggregation behavior of a chiral long-chain ionic liquid in aqueous solution

Li, Xinwei; Gao, Yanan; Liu, Jie; Zheng, Liqiang; Chen, Bin; Wu, Li‐Zhu; Tung, Chen‐Ho

doi:10.1016/j.jcis.2009.11.010

Cited by 74 publications

(57 citation statements)

References 56 publications

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“…That the relative small aggregation number (discussed in the next section) of the micelles in the range of CMC 1 to 8.53 mmol L -1 will probably be the evidence, at least in part, to the Table 1 The physicochemical parameters of [C 2 OHC 12 im]Cl and the other types of surfactants from references [11,17,44] [C 2 OHC 12 aforementioned conjecture. As the concentration of the surfactant higher than the CMC 2 , the value of I 1 /I 3 further decreases to about 1.26, which is comparable with the results in the literature [40,45]. In this case, the smaller result of I 1 /I 3 is in accordance with the relative large aggregation number (discussed in the next section).…”

Section: Structural Characterization Of [C 2 Ohc 12 Im]clsupporting

confidence: 90%

“…The surface activity and aggregation behavior of such surfactants are essential. However, except for a very recent report [40], the surface activity and aggregation behavior of hydroxyl-functionalized IL surfactants have rarely been reported.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with single-chain imidazolium-based IL surfactants, the Gemini surfactants have better surface activities and dispersion ability [38]. More recently, a series of complex IL surfactants [C n mim][C m H 2m?1 SO 3 ] [39] and a chiral IL surfactant [40] have been synthesized.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Self‐Aggregation of a Hydroxyl‐Functionalized Imidazolium‐Based Ionic Liquid Surfactant in Aqueous Solution

Liu

Dong

Fang

2010

J Surfact & Detergents

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This paper deals with the synthesis and self-aggregation of a hydroxyl-functionalized imidazoliumbased ionic liquid (IL) surfactant, namely 1-hydroxyethyl-3-dodecylimidazolium chloride ([C 2 OHC 12 im]Cl). The molecular structure was confirmed by means of electrospray ionization mass spectrometry (ESI-MS), 1 H nuclear magnetic resonance ( 1 H NMR) and elemental analysis. Many important physicochemical parameters, such as the critical micelle concentration (CMC), the surface tension at CMC (c CMC ), the adsorption efficiency (pC 20 ), the surface pressure at CMC (P CMC ), the maximum surface excess (C m ), the minimum molecular cross-sectional area (A min ), the value of CMC/C 20 , the average number of aggregation (N m ) and the micellar microenvironment polarity were determined by surface tension-concentration curves, fluorescence spectra, and electrical conductivity. The phenomena of the second CMC, the concentration dependence of N m , and the critical average aggregation number (N m,c ) of imidazolium-based IL surfactants are reported for the first time in this paper.Keywords Hydroxyl-functionalized Á Imidazolium-based Á Ionic liquid surfactant Á The second CMC Á The critical aggregation number

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Section: Structural Characterization Of [C 2 Ohc 12 Im]clsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

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Synthesis and Self‐Aggregation of a Hydroxyl‐Functionalized Imidazolium‐Based Ionic Liquid Surfactant in Aqueous Solution

Liu

Dong

Fang

2010

J Surfact & Detergents

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“…The max and A min values ( [37,38], the values of max for these SAILs are smaller than that for C n TAB. This may be attributed to the relatively bulkier headgroup of DBU based SAILs than C n TAB.…”

Section: Drug-sail Interactions At the Air-water Interfacementioning

confidence: 69%

Interactions of new 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) based surface active ionic liquids with amitriptyline hydrochloride: Micellization and interfacial studies

Mahajan

Sharma

Mahajan

2013

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…Compared with single-chain IL surfactants, the IL-type Gemini ones have better surface activity and dispersion ability [26]. More recently, the hydroxyl-functionalized chiral IL surfactant [27] and novel IL surfactants, for instance, [C n mim][C m H 2m?1 SO 3 ] [28] have been synthesized. From the electric charge characteristic of the ionic head groups, all the aforementioned IL surfactants are cationic.…”

Section: Introductionmentioning

confidence: 99%

A Novel Zwitterionic Imidazolium‐Based Ionic Liquid Surfactant: 1‐Carboxymethyl‐3‐Dodecylimidazolium Inner Salt

Liu

Dong

Fang

2011

J Surfact & Detergents

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A novel zwitterionic imidazolium-based ionic liquid (IL) surfactant, 1-carboxymethyl-3-dodecylimidazolium inner salt, was synthesized. The molecule structure was confirmed by means of electrospray ionization mass spectrometry, 1 H nuclear magnetic resonance and elemental analysis. The isoelectric point (pI) is 3.8 ± 0.1 at 35 ± 0.1°C. The other important physicochemical parameters such as the critical micelle concentration (CMC), the surface tension at CMC (c CMC ), the adsorption efficiency (pC 20 ), the surface pressure at CMC (P CMC ), the maximum surface excess (C m ), the minimum molecular cross-sectional area (A min ), the value of CMC/C 20 and the average number of aggregation (N m ) were determined by surface tension and steady-state fluorescence probe methods, respectively.

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Aggregation behavior of a chiral long-chain ionic liquid in aqueous solution

Cited by 74 publications

References 56 publications

Synthesis and Self‐Aggregation of a Hydroxyl‐Functionalized Imidazolium‐Based Ionic Liquid Surfactant in Aqueous Solution

Synthesis and Self‐Aggregation of a Hydroxyl‐Functionalized Imidazolium‐Based Ionic Liquid Surfactant in Aqueous Solution

Interactions of new 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) based surface active ionic liquids with amitriptyline hydrochloride: Micellization and interfacial studies

A Novel Zwitterionic Imidazolium‐Based Ionic Liquid Surfactant: 1‐Carboxymethyl‐3‐Dodecylimidazolium Inner Salt

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