Structure Effect on Nonideal Mixing of Alkyl Methyl Sulfoxide and Alkyldimethylphosphine Oxide in Adsorbed Film and Micelle

Iyota, Hidemi; Todoroki, Natsuko; Ikeda, Norihiro; Motomura, Kinsi; Ohta, Akio; Aratono, Makoto

doi:10.1006/jcis.1999.6274

Cited by 31 publications

(24 citation statements)

References 16 publications

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“…Using Motomura theory, which is based on the Gibbs-Duhem equation [60][61][62], the composition of mixed micelles, is determined by using Eq. (15):…”

Section: Composition Of Mixed Films and Micellesmentioning

confidence: 99%

Mixed Micellization and Interfacial Properties of Ionic Liquid‐Type Imidazolium Gemini Surfactant with Amphiphilic Drug Amitriptyline Hydrochloride and its Thermodynamics

Patel

Khan

Dohare

et al. 2015

J Surfact & Detergents

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The thermodynamics of mixed micellization of amitriptyline hydrochloride (AMT) with ionic liquid-type imidazolium gemini surfactant ([C 10 -4-C 10 im] Br 2 ), was investigated at different mole fractions and temperatures by surface tension measurements. The deviation of the critical micelle concentration (CMC) from the ideal critical micelle concentration (CMC*), micellar mole fraction (X m 1 ) from ideal micellar mole fraction (X ideal 1 ), the values of interaction parameter (b) and activity coefficients (f i ) (for both mixed micelles and mixed monolayer) explained the non-ideal behavior (i.e., synergistic behavior) of binary mixtures. The excess free energy (DG ex ) for the AMT-[C 10 -4-C 10 im] Br 2 binary mixtures explained the mixed micelles stability in comparison to micelles of [C 10 -4-C 10 im] Br 2 and pure AMT. Interfacial parameters, i.e., Gibbs surface excess (C max ), minimum head group area at air/water interface (A min ), free energy of micellization (DG o m ), and standard Gibbs energy of adsorption (DG ads o ) were also evaluated for the systems. The standard entropy of adsorption (DS ads o ) was found higher than the standard entropy of micellization (DS m o ) at all mole fractions of AMT (a 1 ).

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“…Using Motomura theory, which is based on the Gibbs-Duhem equation [60][61][62], the composition of mixed micelles, is determined by using Eq. (15):…”

Section: Composition Of Mixed Films and Micellesmentioning

confidence: 99%

Mixed Micellization and Interfacial Properties of Ionic Liquid‐Type Imidazolium Gemini Surfactant with Amphiphilic Drug Amitriptyline Hydrochloride and its Thermodynamics

Patel

Khan

Dohare

et al. 2015

J Surfact & Detergents

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“…±0.01 kJ mol −1 , the dependence of g H,E values on γ is significant. As described previously (21,(24)(25)(26)(27)(28) …”

Section: Miscibility In the Adsorbedmentioning

confidence: 99%

Miscibility of Hydrocarbon and Fluorocarbon Surfactants in Adsorbed Film and Micelle

Villeneuve

Nomura²,

Matsuki³

et al. 2001

Journal of Colloid and Interface Science

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“…The most widely used is the Regular Solution Theory (RST) proposed by Rubingh [5]. An alternative frequently used procedure was proposed by Motomura [6,7]. Aicart and Junquera proposed an empirical method to determine the composition of mixed micelles [8].…”

Section: Introductionmentioning

confidence: 99%

The Composition of Mixed Micelles Formed by Dodecyl Trimethyl Ammonium Bromide and Benzethonium Chloride in Water

Rodrı́guez

Minardi

Schulz

et al. 2011

J Surfact & Detergents

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The composition of the mixed micelles formed by benzethonium chloride and dodecyl trimethyl ammonium bromide in water were experimentally determined by a combination of surfactant ion-selective electrodes and UV-Vis spectroscopy measurements. Results were compared with the computed compositions from three theories on mixed micelles available in the literature (Regular Solution, Motomura' and Georgiev's). The basis of the Junquera and Aicart method and the determination of the micelle aggregation number (N) by pyrene fluorescence quenching, i.e., the constancy of N and the mixed micelle composition when the total concentration is changed, were not supported by our experimental results. Experimental micelle compositions were statistically equal to those computed by Regular Solution Theory. The mixed micelle composition and the quantity of non-micellized surfactant molecules change with concentration above the critical micelle concentration, and therefore do not support the assumptions used in the Junquera and Aicart procedure and in the determination of N by pyrene fluorescence quenching. The reason why the latter procedure gives N values similar to those obtained from other techniques is discussed.

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Structure Effect on Nonideal Mixing of Alkyl Methyl Sulfoxide and Alkyldimethylphosphine Oxide in Adsorbed Film and Micelle

Cited by 31 publications

References 16 publications

Mixed Micellization and Interfacial Properties of Ionic Liquid‐Type Imidazolium Gemini Surfactant with Amphiphilic Drug Amitriptyline Hydrochloride and its Thermodynamics

Mixed Micellization and Interfacial Properties of Ionic Liquid‐Type Imidazolium Gemini Surfactant with Amphiphilic Drug Amitriptyline Hydrochloride and its Thermodynamics

Miscibility of Hydrocarbon and Fluorocarbon Surfactants in Adsorbed Film and Micelle

The Composition of Mixed Micelles Formed by Dodecyl Trimethyl Ammonium Bromide and Benzethonium Chloride in Water

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