Micellization behavior of binary mixtures of amino sulfonate amphoteric surfactant with different octylphenol polyoxyethylene ethers in aqueous salt solution: Both cationic and hydrophilic effects

Ren, Zhao Hua; Huang, Jing; Luo, Yue; Zheng, Yan; Mei, Ping; Lai, Lu; Chang, Yan Ling

doi:10.1016/j.jiec.2016.02.009

Cited by 65 publications

(39 citation statements)

References 23 publications

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“…It is observed from Table S1 that micellar composition of HTAB in the ideal state ( X ideal 2 Þ , calculated by Motomura's approximation show the greater values than those calculated for RST (Kumar et al, 2018). β R values for all three systems investigated are negative, indicating strong attractive interaction between AAS and HTAB (Huang and Ren, 2019;Ren, 2015;Ren et al, 2016;Ren et al, 2017aRen et al, , 2017bRen et al, 2018). With increasing α AAS , the magnitude of β R values gradually decreases (Fig.…”

Section: Rubingh Modelmentioning

confidence: 83%

“…The binary mixtures show significant synergism (negative β R value) (Abdul Rub et al, 2017;Rub et al, 2018).With increasing hydrophobicity of the spacer, synergistic interaction between the surfactant components also increase. With increasing α AAS , the magnitude of β R decreases (Huang and Ren, 2019;Ren, 2015;Ren et al, 2016;Ren et al, 2017aRen et al, , 2017bRen et al, 2018), X 1 ideal , X 1 (Rubingh model), and X σ 1 (Rosen model) gradually increase with an increase of α AAS . The magnitude of β σ at the air-water interface gradually decreases with increasing α AAS and follows the order C 12 MalNa 2 + HTAB > C 12 AspNa 2 + HTAB > C 12 GluNa 2 + HTAB.…”

Section: Discussionmentioning

confidence: 96%

“…The trend can be explained by C 12 MalNa 2 being less bulky and hydrophilic than the other two AAS due to the absence of methylene group between two carboxylate anions, thereby enabling C 12 MalNa 2 to more strongly interact with HTAB and remain associated with the micellar surface (Pal and Saini, 2019). The stronger interaction between C 12 MalNa 2 and HTAB are also reflected by lower β σ values (Table S1) (Huang and Ren, 2019;Ren, 2015;Ren et al, 2016;Ren et al, 2017aRen et al, , 2017bRen et al, 2018). Negative β σ values for all the AAS + HTAB mixed micelles also indicate mutual interaction between the monomers of surfactant pair at the air-water interface (Bakshi et al, 2002).…”

Section: Rosen Modelmentioning

confidence: 98%

“…Increasing the number of methylene groups between the carboxylates sterically favors its interaction with HTAB. The increased electrophilic interaction between the two oppositely charged head groups, inducing formation of mixed micelles, can explain the above sequence of β σ (Huang and Ren, 2019;Ren, 2015;Ren et al, 2016;Ren et al, 2017aRen et al, , 2017bRen et al, 2018). On the other hand, the close proximity of the two carboxylate groups of AAS enhances electrostatic repulsion.…”

Section: Rosen Modelmentioning

confidence: 99%

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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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Section: Rubingh Modelmentioning

confidence: 83%

Section: Discussionmentioning

confidence: 96%

Section: Rosen Modelmentioning

confidence: 98%

Section: Rosen Modelmentioning

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

View full text Add to dashboard Cite

show abstract

“…Only monomeric surfactant molecules present at concentrations below the critical micellar concentration (CMC) are present and they do not influence the viscosity (Ren, 2015a, 2017; Ren et al, 2016, 2017, 2018). Network density is influenced by the surfactant concentration; relaxation time is dependent upon surfactant concentrations, type of counterions, ionic strength, and temperature.…”

Section: Introductionmentioning

confidence: 99%

Viscoelastic Behavior of Synthesized Liquid Soaps and Surface Activity Properties of Surfactants

Bratovčić

Nazdrajic

2020

J Surfact & Detergents

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In the present work, a rheological study of liquid soaps prepared from different mixture of surfactants as a function of surfactant type and concentration was performed. The curves of shear stress vs. shear rate and viscosity vs. shear rate were recorded at constant temperature, 294 ± 0.1 K. The surface activity properties were also studied. The results of the study showed that values of surface tension, γ, were in the range 31-40 mN m −1 and the critical micelle concentration (CMC), was of the order 10 −4 mol L −1. The calculated maximum surface excess, Γ max , varied from 2.40 to 3.66 μmol m −2 , while minimum area per molecule, A min , varied from 41.1 (for amphoterics) to 81.4 Å 2 (for nonionic surfactants). The standard free energy of micellization, ΔG 0 m −29.8 and −29.3 kJ mol −1 for anionic and amphoteric surfactants, respectively, were while values for nonionic surfactants varied between −31.8 and − 30.3 kJ mol −1. The free energy of adsorption, ΔG 0 ads was the lowest for amphoteric surfactants (−37.9 kJ mol −1), followed by anionics (−40.4 kJ mol −1) and nonionics (−43.34 to −46.84 kJ mol −1), indicating that micellization process is spontaneous in the examined medium. The synthetized liquid soaps show pseudoplastic behavior and they achieved pipe flow. The results of this research indicate that flow behavior was affected significantly by the ionic charge of the surfactant and the ionic strength of the formulation, suggesting that the flow behavior could be changed by manipulating the choice of the surfactant and salinity. The pH value of all liquid soaps examined were weakly acidic, in the range of 5.0-6.4.

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Influence of additive on the aggregation behavior of drug and cationic hydrotrope aniline hydrochloride mixtures: a physicochemical assessment

Alghamdi

Rub

Azum

et al. 2020

J of Physical Organic Chem

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We investigated the influence of an additive (50 mmol kg–1 NaCl/300 mmol kg–1 urea [U]) on the aggregation of amphiphilic promethazine hydrochloride (PMH) drug and cationic hydrotrope–aniline hydrochloride (AnHCl) mixtures at various temperatures and ratios. The drug PMH is mostly used for the treatment of allergic symptoms. The obtained critical micelle concentration (cmc) values are well below the cmcid (ideal cmc) value, which confirms interactions between components PMH and AnHCl in the solution mixture. The micellar mole fraction (X1Rub, X1Rod, and X1id) of the first component (AnHCl) was evaluated using different models, which suggested greater involvement of AnHCl in mixed micelles (as expected); besides, the obtained micellar mole fraction values increase with increase in the mole fraction (α1) of AnHCl. The interaction parameter (β) values obtained were negative, which confirms attractive interaction or synergism among the components. Activity coefficients ( f1Rub [AnHCl] and f2Rub [PMH]) values are always found below one confirming the nonideality as well as attractive interaction between the components. Different physicochemical parameters evaluated suggested attractive interaction between the components (PMH and AnHCl) in all studied solvents; however, in salt media, the interaction increases to some extent, whereas in urea media, it decreases to some extent. Diverse thermodynamic parameters (Gibbs free energy [ΔGm0], enthalpy [ΔHm0], and entropy [ΔSm0]) of micellization were computed and discussed separately. The excess free energy ( ∆GexRub) values of all systems were negative, suggesting higher stability of formed mixed micelles as compared with singular‐component micelles.

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Micellization behavior of binary mixtures of amino sulfonate amphoteric surfactant with different octylphenol polyoxyethylene ethers in aqueous salt solution: Both cationic and hydrophilic effects

Cited by 65 publications

References 23 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

Viscoelastic Behavior of Synthesized Liquid Soaps and Surface Activity Properties of Surfactants

Influence of additive on the aggregation behavior of drug and cationic hydrotrope aniline hydrochloride mixtures: a physicochemical assessment

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