Surface activity, micellization and solubilization of cationic gemini surfactant-conventional surfactants mixed systems

Patel, Urja; Parekh, Paresh; Sastry, Nandhibatla V.; Aswal, Vinod K.; Bahadur, Pratap

doi:10.1016/j.molliq.2016.11.017

Cited by 53 publications

(26 citation statements)

References 62 publications

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“…5, panel B). The negative values of G Ex further support the occurrence of synergistic interactions (Patel et al, 2017). The same trends are observed for ΔH m and ΔG m ( Table S3).…”

Section: Thermodynamics Of Micellizationsupporting

confidence: 76%

“…From the RST model, (Rubingh and Mittal, 1979) different thermodynamic parameters can be derived (Das et al, 2018), assuming that the excess entropy of mixing is zero, as has been performed for other surfactant mixtures (Patel et al, 2017;Ren et al, 2017aRen et al, , 2017bRosen and Kunjappu, 2012;Schulz et al, 2013;Sikorska et al, 2016). Gibbs excess free energy (G Ex ), excess enthalpy (H Ex ), and enthalpy of micellization (ΔH m ) can be calculated using Equation 13 (Patel et al, 2017;Ren et al, 2017aRen et al, , 2017b:…”

Section: Thermodynamics Of Micellizationmentioning

confidence: 99%

“…X 1 , X 2 , f 1 , and f 2 values were calculated from Rubingh's model (Rubingh and Mittal, 1979) (Table S1). Gibbs free energy of micellization for ideal mixing ΔG ideal m can be calculated by the following equation (Patel et al, 2017;Ren et al, 2017aRen et al, , 2017b:…”

Section: Thermodynamics Of Micellizationmentioning

confidence: 99%

See 2 more Smart Citations

Theoretical Approaches on the Synergistic Interaction between Double‐Headed Anionic Amino Acid‐Based Surfactants and Hexadecyltrimethylammonium Bromide

Barai

Mandal

Sultana

et al. 2020

J Surfact & Detergents

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Theoretical investigations on the micellization of mixtures of (i) amino acid‐based anionic surfactants [AAS: N‐dodecyl derivatives of aminomalonate, −aspartate, and ‐glutamate] and (ii) hexadecyltrimethylammonium bromide (HTAB), were carried out at different mole ratios. Variation in the theoretical values of critical micelle concentration (CMC), mole fraction of surfactants in the micellar phase (X), at the interface (Xσ), interaction parameters at the bulk/interface (βR/βσ), ideality/nonideality of the mixing processes, and activity coefficients (f) were evaluated using Rubingh, Rosen, Motomora, and Sarmoria‐Puvvada‐Blankschtein models. CMC values significantly deviate from the theroretically calculated values, indicating associative interaction. With increasing mole fraction of AAS (αAAS), the magnitude of the (βR/βσ) values gradually decreased, considered to attributable to hydrophobic interactions. With increasing αAAS, the micellar mole fraction of HTAB (X2) decreased insignificantly and X2 values were higher than those compared to AAS for all combinations, due to the dominance of HTAB in micelles. Micellar mole fraction at the ideal state of AAS (X1ideal) differed from micellar mole fraction of AAS (X1), indicating nonideality in the mixed micellization process. Gibbs free energy of micellization ( ∆Gm) values are more negative than the free energy of micellization for ideal mixing (∆Gmideal), indicating the micellization process is spontaneous. With increasing αAAS, the enthalpy of micellization (ΔHm) and entropy of micellization (ΔSm) values gradually increased, which indicates micellization is exothermic. The different physicochemical parameters of the mixed micelles are correlated with the variation in the spacer length between the two carboxylate groups of AAS.

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“…5, panel B). The negative values of G Ex further support the occurrence of synergistic interactions (Patel et al, 2017). The same trends are observed for ΔH m and ΔG m ( Table S3).…”

Section: Thermodynamics Of Micellizationsupporting

confidence: 76%

Section: Thermodynamics Of Micellizationmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical Approaches on the Synergistic Interaction between Double‐Headed Anionic Amino Acid‐Based Surfactants and Hexadecyltrimethylammonium Bromide

Barai

Mandal

Sultana

et al. 2020

J Surfact & Detergents

View full text Add to dashboard Cite

show abstract

“…Surfactant mixture systems include the mixtures of the same types of surfactant compositions and different types of surfactant compositions (Jadidi et al, ; Zhang et al, ; Zheng et al, ). The former surfactant mixtures can be divided into cationic/cationic mixture (Patel et al, ), anionic/anionic mixtures (Szymczyk and Jańczuk, ), and nonionic/nonionic mixtures (Szymczyk and Jańczuk, ), while the latter ones mainly consist of cationic/nonionic mixtures (Fatma et al, ), anionic/nonionic mixtures (Tucker et al, ), anionic/zwitterionic mixtures (Maneedaeng and Flood, ), anionic‐nonionic/nonionic mixtures (Liu et al, ), and anionic/cationic mixtures (Li et al, ). The anionic/nonionic surfactant mixtures can compensate for the disadvantages of the homologous single surfactant.…”

Section: Introductionmentioning

confidence: 99%

Surface Properties and Solubility Enhancement of Anionic/Nonionic Surfactant Mixtures Based on Sulfonate Gemini Surfactants

Mei

Chen

et al. 2019

J Surfact & Detergents

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As a class of novel surfactants, Gemini surfactants usually exhibit fairly excellent interfacial properties in aqueous solutions on account of the unique structure. They have significant application and development potential for industrial production. However, the mixing properties of Gemini surfactants with conventional surfactants are the key to their application. The equilibrium surface tension curves of anionic/nonionic surfactant mixtures based on the sulfonate Gemini surfactant (SGS‐12) were measured using the Wilhelmy Plate method. The parameters of surface adsorption, the interaction parameters between anionic and nonionic surfactants, and the thermodynamic parameters of micelle formation were calculated from the corresponding equations. In addition, the dynamic surface tension (DST) curves of anionic/nonionic surfactant mixtures were examined through bubble profile analysis, and the diffusion performance parameters were acquired from empirical formulas. The solubilization of pyrene in micelle solutions was studied using UV–vis absorption spectroscopy. The results show that the interaction parameters of all anionic/nonionic surfactants are negative, indicating that there is a synergistic effect on reducing the surface tension. For the SGS‐12/OP‐10, SGS‐12/Tween 80, SGS‐12/AEO9, and SGS‐12/APG0810 mixtures, the optimum mixing ratios are 6:4, 7:3, 7:3, and 8:2, respectively. The thermodynamic data of micelles show that the formation of mixed micelles for SGS‐12/APG0810 mixtures is an enthalpy‐driven process. The tendency of DST curves of the SGS‐12/APG0810 mixture is similar to that of SGS‐12. In comparison with single‐surfactant solutions, the anionic/nonionic surfactant mixtures show stronger solubilization capacity toward pyrene.

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“…As a result of synergistic interaction, their effectiveness is improved by increasing the interfacial activity [9][10][11]. The properties of surfactant mixtures were studied using various models, such as the theory of Clint, Rubingh, Motomura, Rosen, and Blankstein [12][13][14][15][16][17]. In most of these studies, adsorption and micelle formation parameters were evaluated to obtain information about mixed micelles and the results were discussed based on the interaction parameter β.…”

Section: Introductionmentioning

confidence: 99%

Influence of Synergetic Effects of Oxyethylated Isononylphenol and Polyglyceryl-3 Methylglucose Distearate on the Formation of Self-Organizing Structures at the Water / Vazeline Oil Interface

Sautina¹,

Zakharova²,

Galyametdinov³

2019

Liq. Cryst. and their Appl.

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In this research, the surfactant-co-surfactant intermolecular interactions in the H 2 O-Oxyethylated Isononylphenol-Polyglyceryl-3 Methylglucose Distearate-Vaseline oil system were studied. For the first time, two approaches were combined: the additivity of hydrophilic lipophilic balance (HLB) and the water / oil interfacial tension measurement in microemulsion systems. It was shown that by calculating the HLB of the surfactant mixture and measuring the corresponding interfacial tension, it is possible to predict self-organization of surfactant. It was directly related to the intermolecular interaction estimated by calculating the interaction parameter  It has been established that in mixed systems synergistic effects were observed and the interfacial tension decreased, which were caused by electrostatic attraction between surfactant's molecules. The processes of selforganization of surfactant mixture at the H 2 O-Vaseline oil interface were studied. It has been shown that the hydrophilic lipophilic balance of the mixture and the interaction parameter directly connected with the nature of the structures from liquid crystal to microemulsion. The proposed approach can be used for the scientifically based calculation of the components in the surfactant mixture at the liquid-liquid interface and prediction of microemulsion and liquid crystals formation in three component systems.

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Surface activity, micellization and solubilization of cationic gemini surfactant-conventional surfactants mixed systems

Cited by 53 publications

References 62 publications

Theoretical Approaches on the Synergistic Interaction between Double‐Headed Anionic Amino Acid‐Based Surfactants and Hexadecyltrimethylammonium Bromide

Theoretical Approaches on the Synergistic Interaction between Double‐Headed Anionic Amino Acid‐Based Surfactants and Hexadecyltrimethylammonium Bromide

Surface Properties and Solubility Enhancement of Anionic/Nonionic Surfactant Mixtures Based on Sulfonate Gemini Surfactants

Influence of Synergetic Effects of Oxyethylated Isononylphenol and Polyglyceryl-3 Methylglucose Distearate on the Formation of Self-Organizing Structures at the Water / Vazeline Oil Interface

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