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Song Y, Gao S, Yao Y, Zheng H, Niu Y. Synergism and properties of binary mixtures based on an arginine dodecyl ester surfactant. NEW J CHEM 2022. [DOI: 10.1039/d2nj02680e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The properties of binary mixtures of new cationic amino acid surfactant arginine dihydrochloride dodecyl ester (ADDE) with alkyl poly glycosides (APGs) were studied systematically by evaluating surface tension, conductivity, dynamic...
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2
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Altwaiq AM, Abdel-Rahem RA. Reaction between Zinc and Hydrochloric Acid in Solutions Containing Alkyltrimethylammonium Bromide Cn
TAB (n
= 8, 10, and 12) Cationic Surfactants: Influence of Surfactant Chain Length. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12262] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Abdelmnim M. Altwaiq
- Department of Chemistry, College of arts and Sciences; University of Petra; P.O. Box: 961343, Amman 11196 Jordan
| | - Rami A. Abdel-Rahem
- Department of Chemistry, College of arts and Sciences; University of Petra; P.O. Box: 961343, Amman 11196 Jordan
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3
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Chai J, Cui X, Zhang X, Song M, Wang J, Lu J. Adsorption equilibrium and dynamic surface tension of alkyl polyglucosides and their mixed surfactant systems with CTAB and SDS in the surface of aqueous solutions. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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4
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Zhu Y, Free ML. Experimental investigation and modeling of the performance of pure and mixed surfactant inhibitors: Micellization and corrosion inhibition. Colloids Surf A Physicochem Eng Asp 2016; 489:407-22. [DOI: 10.1016/j.colsurfa.2015.11.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Abdel-rahem RA, Altwaiq AM, Zaben ES, Alnass’a MM. Zinc Corrosion in Acidic Solutions Containing Single and Mixed Surfactants. J SURFACTANTS DETERG 2016; 19:353-62. [DOI: 10.1007/s11743-015-1782-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Affiliation(s)
- Yakun Zhu
- Department of Metallurgical
Engineering, University of Utah, 135 S 1460 E, Room 412, Salt Lake City, Utah 84112, United States
| | - Michael L. Free
- Department of Metallurgical
Engineering, University of Utah, 135 S 1460 E, Room 412, Salt Lake City, Utah 84112, United States
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Han Z, Yang X, Liu Y. Micellar and Interfacial Behavior of Mixed Systems Containing Glycoside-Based Surfactant and Cationic Didecyldimethylammonium Chloride. J SURFACTANTS DETERG 2015; 18:873-80. [DOI: 10.1007/s11743-015-1705-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Han Z, Yang X, Liu Y, Wang J, Gao Y. Physicochemical Properties and Phase Behavior of Didecyldimethylammonium Chloride/Alkyl Polyglycoside Surfactant Mixtures. J SURFACTANTS DETERG 2015. [DOI: 10.1007/s11743-015-1679-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Aslam J, Siddiqui US, Bhat IA, Kabir-ud-Din. Molecular interactions of cationic gemini surfactants (m-s-m) with an environmental friendly nonionic sugar-based surfactant (β-C12G): Interfacial, micellar and aggregation behavior. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.12.088] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Kakehashi R, Shizuma M, Yamamura S. Mixed Micelles Containing Sodium Laurate: Effect of Chain Length, Polar Head Group, and Added Salt. TENSIDE SURFACT DET 2013. [DOI: 10.3139/113.110221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
We studied the mixing behavior of binary mixtures of alkylglycosides (CnGly); i.e. n-Octyl β-D-glucopyranoside, n-Decyl β-D-glucopyranoside and n-Decyl β-D-maltoside in combination with sodium laurate (NaL), and N,N-dimethyldodecylamine oxide in combination with NaL. The critical micelle concentration (CMC) data were obtained as functions of the composition based on equilibrium surface tension measurements. The cmc values with and without the addition of salt systems were then analyzed according to the regular solution model developed by Rubingh for mixed micelles. For the added salt systems, we applied Maeda's formulation for ionic/nonionic mixed micelles. For NaL/CnGly mixed systems, an increase in the hydrophilicity of the polar head group of CnGly resulted in a strong interaction between NaL and CnGly. In addition, introducing ionic species to the added salt systems stabilized the nonionic micelles.
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Abdel-Rahem R, Ayesh AS. Physiochemical Properties of Hydroxy Mixed Ether HMEn Surfactants and their Interaction with Sodium Dodecyl Sulfate SDS. TENSIDE SURFACT DET 2013. [DOI: 10.3139/113.110013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
This paper is focused on the phase behavior, interaction with anionic surfactant sodium dodecyl sulfate SDS, adsorption and wetting investigations of new hydroxy mixed ether nonionic surfactants HMEn. The phase diagrams of (0.1–100) %wt of HMEn (n-value is the ethoxylation number EO) at the temperature range 20–100°C have shown that the increasing of n-value raises the cloud boundary toward higher temperature. Remarkable result was obtained from the interaction between SDS and HMEB, at which the mixed system exhibits a unique homogeneity and a liquid crystal phase formation. Macroscopically, the liquid crystal region was found when the SDS concentration range between 8 and 24 mM mixed with 10% wt HMEB. The interaction between HMEn and mica was also investigated using atomic force microscopy AFM and a pronounced adsorption of HMEn on mica was observed. Moreover, contact angle results reveal that glass substrate shows strong wettability of HMEn surfactant solutions compared with polyethylene PE and polymethylmethaacrylate PMMA substrates. This wettability however also decreases with EO number.
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Affiliation(s)
- R. Abdel-Rahem
- King Faisal University, Al-Ahsa Teachers College, Department of Science, Section of Chemistry, Al Hafouf 31982, Kingdom of Saudi Arabia
| | - A. S. Ayesh
- King Faisal University, Al-Ahsa Teachers College, Department of Science, Section of Physics, Al Hafouf 31982, Kingdom of Saudi Arabia
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12
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Siddiqui US, Aslam J, Ansari WH, Kabir-ud-Din. Micellization and aggregation behavior of a series of cationic gemini surfactants (m-s-m type) on their interaction with a biodegradable sugar-based surfactant (octyl-β-D-glucopyranoside). Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.12.044] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Hao LS, Deng YT, Zhou LS, Ye H, Nan YQ, Hu P. Mixed Micellization and the Dissociated Margules Model for Cationic/Anionic Surfactant Systems. J Phys Chem B 2012; 116:5213-25. [DOI: 10.1021/jp300568k] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Li-Sheng Hao
- College of Chemistry
and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yao-Tai Deng
- College of Chemistry
and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Liu-Shun Zhou
- College of Chemistry
and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Heng Ye
- College of Chemistry
and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yan-Qing Nan
- College of Chemistry
and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Peng Hu
- College of Chemistry
and Chemical Engineering, Hunan Normal University, Changsha 410081, China
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14
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Maeda H. Phenomenological approaches in the thermodynamics of mixed micelles with electric charges. Adv Colloid Interface Sci 2010; 156:70-82. [PMID: 20299002 DOI: 10.1016/j.cis.2010.02.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Revised: 02/14/2010] [Accepted: 02/14/2010] [Indexed: 10/19/2022]
Abstract
The stability of mixed micelles in general has been extensively studied by the molecular thermodynamic approaches as well as by the phenomenological or thermodynamic approaches. In this article, phenomenological approaches in the thermodynamics of charged mixed micelles, mostly on ionic/nonionic mixed micelles, are reviewed. The electrostatic interaction constitutes a main contribution to the excess free energy per monomer (in kT unit) g(ex) in the case of ionic/nonionic mixed micelles and the corresponding contribution is generally negative, known as the electric synergism. The origin of the electric synergism is shown to reside in positive curvatures of g(ex,el) (the electric part of g(ex)) when plotted against the mole fraction of the ionic species x. Two types of the micellar Gibbs-Duhem (MGD) relations with (type 1) or without (type 2) the contribution from counterions are discussed to clarify various confusions found in the literature. Effects of varying ionic strengths with the micelle composition in the case of charged mixed micelles without any supporting electrolyte are discussed and a relevant way to correct for the effects is proposed. For ionic/nonionic mixed micelles, the regular solution model (RSM) and some two-parameter models to overcome the limitations inherent to the RSM are discussed. For mixed micelles subject to type 2 MGD relation, hydrogen ion titrations could provide g(el) experimentally just as in the case of linear polyelectrolytes and for those micelles subject to RSM, the titration curve becomes a straight line. Useful information is presented originating from the thermodynamic analysis on the difference of the intrinsic proton dissociation constants between the micelle and the monomer. An analytical expression of the dependence of the degree of counterion binding on x is discussed in comparison with the molecular thermodynamic results. The Corrin-Harkins relation is compared with the degree of counterion binding for ionic/nonionic mixed micelles. Mixed micelles in the concentration range higher than the critical micelle concentration (cmc) are discussed for three cases, the general method of Funasaki-Hada, the ideal mixing case, and the RSM.
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15
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Lopata JJ, Werts KM, Scamehorn JF, Harwell JH, Grady BP. Thermodynamics of mixed anionic/nonionic surfactant adsorption on alumina. J Colloid Interface Sci 2010; 342:415-26. [DOI: 10.1016/j.jcis.2009.10.072] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Accepted: 10/28/2009] [Indexed: 10/20/2022]
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16
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Basu Ray G, Chakraborty I, Ghosh S, Moulik SP. On mixed binary surfactant systems comprising MEGA 10 and alkyltrimethylammonium bromides: A detailed physicochemical study with a critical analysis. J Colloid Interface Sci 2007; 307:543-53. [PMID: 17196610 DOI: 10.1016/j.jcis.2006.11.055] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2006] [Revised: 11/29/2006] [Accepted: 11/30/2006] [Indexed: 11/16/2022]
Abstract
Self-aggregation of mixed binary nonionic and ionic surfactants comprising N-methyl-N-decanoyl glucamide (MEGA 10) and alkyltrimethylammonium bromides (C(12)-, C(14)-, and C(16)TAB) has been investigated in detail by different physical methods. The counter-ion binding, aggregation number, and polarity of the mixed micelles have been determined. The results have been analyzed in the light of the theories of Rubingh and Maeda. The thermodynamic parameters of the micellization process have been evaluated and discussed. The interfacial adsorptions of the mixed amphiphiles including their surface excesses and head-group areas have also been evaluated. Based on the head-group areas, the overall shapes of the mixed micelles have been predicted from the estimation of the amphiphile packing parameters.
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Affiliation(s)
- Gargi Basu Ray
- Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700032, India
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17
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Affiliation(s)
- Rakesh Sharma
- a Department of Chemistry , South Gujarat University , Surat , 395007 , India
| | - Dharmesh Varade
- a Department of Chemistry , South Gujarat University , Surat , 395007 , India
| | - Pratap Bahadur
- a Department of Chemistry , South Gujarat University , Surat , 395007 , India
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18
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Moore SE, Mohareb M, Moore SA, Palepu RM. Conductometric and fluorometric investigations on the mixed micellar systems of cationic surfactants in aqueous media. J Colloid Interface Sci 2006; 304:491-6. [PMID: 17049546 DOI: 10.1016/j.jcis.2006.09.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2006] [Revised: 07/19/2006] [Accepted: 09/10/2006] [Indexed: 11/27/2022]
Abstract
Micellar properties of binary mixtures of hexadecyldiethylethanolammonium bromide surfactant with tetradecyldimethylammonium, trimethylammonium, triphenylphosphonium, diethylethanolammonium, and pyridinium bromide surfactants have been characterized employing conductometric and fluorescence techniques. The critical micelle concentration (cmc*) and the degree of counter-ion binding values (delta) of the binary systems were determined from the conductivity measurements. The results were analyzed in light of various existing theories to calculate micellar composition, activity coefficients, and the interaction parameter (beta). Partial contribution of each surfactant, cmc1*, cmc2*, to the overall cmc* value was also evaluated. Aggregation numbers and micropolarity of the mixed micelles were determined from fluorescence measurements. The results were discussed in terms of synergetic interactions in these systems on the basis of the head group/head group and tail/tail interactions and the counter-ion binding.
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Affiliation(s)
- Sarah E Moore
- Department of Chemistry, St. Francis Xavier University, Antigonish, Nova Scotia, B2G 2W5 Canada
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19
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Hierrezuelo JM, Aguiar J, Carnero Ruiz C. Interactions in binary mixed systems involving a sugar-based surfactant and different n-alkyltrimethylammonium bromides. J Colloid Interface Sci 2006; 294:449-57. [PMID: 16125718 DOI: 10.1016/j.jcis.2005.07.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2005] [Revised: 07/11/2005] [Accepted: 07/14/2005] [Indexed: 11/26/2022]
Abstract
In this paper, mixtures of sugar-based decanoyl-N-methylglucamide with three different n-alkyltrimethylammonium bromides (n=12 (DTAB), 14 (TTAB), and 16 (CTAB)) have been studied using conductance and fluorescence spectroscopic techniques. The critical micelle concentration values of pure and mixed systems were determined by both the conductance and the pyrene 1:3 ratio methods. The experimental results were interpreted using thermodynamic mixing approaches based on the pseudophase separation model. These analyses allowed us to determine the interaction parameters and the composition of the mixed micelles through the whole composition range. Since all the ionic surfactants used in this study have the same headgroup, the differences observed between the three mixed systems were attributed to the lengths of their hydrocarbon chains. It was established that, besides interactions of electrostatic character, additional short-range interactions must be considered. By using the static quenching method, the mean micellar aggregation numbers of mixed micelles were obtained. In the cases of the mixed systems with DTAB and TTAB it was observed that the aggregation number is initially reduced with the participation of the ionic component, remaining almost constant and close to the aggregation number of the pure ionic micelle. However, in the systems involving CTAB it is observed that the size of micelles initially increases and then decreases slightly for mixtures with a high content of the ionic component. The hydrophobic index pyrene 1:3 ratio was used to examine possible changes in the micellar micropolarity; however, no definitive conclusions could be derived from these experiments. In order to study the evolution of the local viscosity of the mixed micelles upon addition of the ionic surfactant, fluorescence polarization measurements were carried out with two different probes, fluorescein and coumarin 6. It was found that the participation of the ionic component in the mixed micelle induces the formation of less ordered structure than that of pure nonionic micelles. An attempt was made to correlate these effects with the interaction parameters obtained from the theoretical mixing model and, consequently, with the alkyl chain length of the ionic components.
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Affiliation(s)
- J M Hierrezuelo
- Grupo de Fluidos Estructurados y Sistemas Anfifílicos, Departamento de Física Aplicada II, Escuela Universitaria Politécnica, Universidad de Málaga, Campus de El Ejido, 29013 Málaga, Spain
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20
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Hierrezuelo JM, Aguiar J, Carnero Ruiz C. Role of the head group on the mixed micellization process in binary systems containing a sugar-based surfactant: decanoyl-N-methylglucamide. Mol Phys 2005. [DOI: 10.1080/00268970500290334] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Goldsipe A, Blankschtein D. Modeling counterion binding in ionic-nonionic and ionic-zwitterionic binary surfactant mixtures. Langmuir 2005; 21:9850-65. [PMID: 16229501 DOI: 10.1021/la050699s] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A predictive molecular-thermodynamic theory is developed to model the effect of counterion binding on micellar solution properties of binary surfactant mixtures of ionic and nonionic (or zwitterionic) surfactants. The theory combines a molecular-thermodynamic description of micellization in binary surfactant mixtures with a recently developed model of counterion binding to single-component ionic surfactant micelles. The thermodynamic component of the theory models the equilibrium between the surfactant monomers, the counterions, and the mixed micelles. The molecular component of the theory models the various contributions to the free-energy change associated with forming a mixed micelle from ionic surfactants, nonionic (or zwitterionic) surfactants, and bound counterions (referred to as the free energy of mixed micellization). Specifically, the various molecular contributions to the free energy of mixed micellization model the underlying physics associated with the assembly of, and the interactions between, the surfactant polar heads, the surfactant nonpolar tails, and the bound counterions. Utilizing known structural characteristics of the surfactants and the counterions, along with the solution conditions, the free energy of mixed micellization is minimized to predict various optimal micelle characteristics, including the degree of counterion binding, the micelle composition, and the micelle shape and size. These predicted optimal micelle characteristics are then used to predict the critical micelle concentration (cmc) and the average micelle aggregation number. Our predictions of the degree of counterion binding, the cmc, and the average micelle aggregation number show good agreement with available experimental results from the literature for several binary surfactant mixtures. In addition, the theory is used to shed light on the relationship between the micelle composition, counterion binding and ion condensation, and the micelle shape transition.
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Affiliation(s)
- Arthur Goldsipe
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Hierrezuelo J, Aguiar J, Carnero Ruiz C. Micellar properties of a mixed surfactant system constituted by n-octyl-β-d-thioglucopyranoside and sodium dodecyl sulphate. Colloids Surf A Physicochem Eng Asp 2005. [DOI: 10.1016/j.colsurfa.2005.04.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Gerber S, Garamus VM, Milkereit G, Vill V. Mixed micelles formed by SDS and a bolaamphiphile with carbohydrate headgroups. Langmuir 2005; 21:6707-11. [PMID: 16008378 DOI: 10.1021/la050439a] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The formation of micelles in aqueous mixtures of a carbohydrate-based bolaamphiphile and sodium dodecyl sulfate (SDS) is investigated by surface tension and small-angle neutron scattering. The obtained values of critical micelle concentration (CMC) are analyzed within the framework of regular solution theory. Synergetic interactions between the bolaamphiphile and SDS are observed (parameter beta is negative; a minimum in the plot CMC vs composition). SANS data are collected for mixtures containing protonated and deuterated SDS. This gives us the possibility to conclude that mixed micelles with a homogeneous distribution of surfactant molecules within the micelle are formed. The shape of the micelles is found to be slightly oblate.
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Affiliation(s)
- Sven Gerber
- Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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24
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Kakehashi R, Shizuma M, Yamamura S, Takeda T. Mixed micelles containing sodium oleate: the effect of the chain length and the polar head group. J Colloid Interface Sci 2004; 279:253-8. [PMID: 15380436 DOI: 10.1016/j.jcis.2004.06.044] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2003] [Accepted: 06/17/2004] [Indexed: 11/28/2022]
Abstract
We have investigated the mixing behavior of binary mixtures of the alkylglucosides (CnG) octyl beta-D-glucoside and decyl D-glucoside in combination with sodium oleate (NaOl), and the amine oxide surfactants (AO) N,N-dimethyldodecylamine oxide, N,N-bis (2-hydroxyethyl)dodecylamine oxide, and 3-lauramidopropyl-N,N-dimethylamine oxide in combination with NaOl. From the equilibrium surface tension measurements, the critical micelle concentration (cmc) data were obtained as functions of the composition. Values of the cmc were analyzed according to both the regular solution model developed by Rubingh for mixed micelles and Maeda's formulation for ionic/nonionic mixed micelles. Two interaction parameters, beta and B1, were estimated from the regular solution model and Maeda's formulation, respectively. For NaOl/CnG mixed systems, a decrease in the hydrocarbon chain length of CnG resulted in a stronger interaction with NaOl from both beta and B1 values. For NaOl/AO mixed systems, the bulkiness of a polar head group of AO surfactants influenced the interaction between NaOl and AO. The dynamic surface tension measurements show that all surface tension values of surfactant solutions examined decreased with the time. We found that the time dependence of surface tension values for NaOl mixed systems was greatly influenced by the presence of NaOl rather than the other component.
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Affiliation(s)
- Rie Kakehashi
- Osaka Municipal Technical Research Institute, Morinomiya, 536-8553, Japan.
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25
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Granizo N, Thunig C, Valiente M. The effect of octyl glucoside on the lamellar phase of diluted C12E4 and alcohol systems. J Colloid Interface Sci 2004; 273:638-44. [PMID: 15082404 DOI: 10.1016/j.jcis.2004.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2003] [Accepted: 02/06/2004] [Indexed: 11/27/2022]
Abstract
A systematic study on phase behavior of the mixture of nonionic surfactants with alcohols at 30.0+/-0.1 degrees C was carried out. The total surfactant concentration was kept to 0.1 M varying the mole ratio of n-octyl beta-d-glucopyranoside (OG) and tetraethylene glycol monododecyl ether. Two uniphasic regions were found, the lamellar phase at low OG mole fraction and micelles at high OG mole fraction. The presence of OG favors the lamellae-micelle transition. Alkanols and benzyl alcohol were used as cosurfactants. The more hydrophobic alcohols (octanol and decanol) increase the OG content in the mixed bilayers. On the contrary, benzyl alcohol is not as favorable to the OG incorporation in the lamellar phase as in the mixed micelles. The L(3) phase has only been found as a uniphasic region with hexanol.
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Affiliation(s)
- Noelia Granizo
- Departamento de Química Física, Universidad de Alcalá, E-28871 Madrid, Spain
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26
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Affiliation(s)
- Hiroshi Maeda
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka, 812-8581 Japan
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27
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Akisada H. Apparent Binding Degree of a Counterion and Micellar Composition in Cationic and Nonionic Surfactant Mixed Solutions at CMC. J Colloid Interface Sci 2001; 240:323-334. [PMID: 11446815 DOI: 10.1006/jcis.2001.7637] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The Gibbs-Duhem equation of an ionic aggregate is obtained, considering the activity coefficient of the aggregate due to the interaction between the aggregate ion and its diffusion layer. The equation is applied to mixtures of cationic and nonionic surfactants. The critical micelle concentrations of the cationic and nonionic surfactant mixtures were measured in the presence of an inorganic salt with the same counterion. The logarithm of the CMC of the mixture gives a linear relationship versus the logarithm of the counterion concentration for a constant molar ratio of the two surfactants. The apparent binding degree of the counterion and the fraction of the nonionic surfactant in the mixed micelle were obtained from the CMC data using the Gibbs-Duhem equation. The binding degree which is obtained by the Corrin-Harkins equation is apparent. The apparent binding degree increases with the decrease in the counterion concentration. The behavior of the apparent binding degree is different from that of the real binding degree obtained by potentiometry. These facts are explained by our definition of the apparent binding degree of the counterion. Copyright 2001 Academic Press.
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Affiliation(s)
- Hideo Akisada
- Department of Environmental Chemistry, Faculty of Engineering, Kyushu Kyoritsu University, 1-8 Jiyugaoka, Yahatanishi-ku, Kitakyushu, 807-8585, Japan
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Abstract
To study the influence of the chemical nature of headgroups and the type of counterion on the process of micellization in mixed surfactant systems, the cmc's of several binary mixtures of surfactants with the same length of hydrocarbon tail but with different headgroups have been determined as a function of the monomer composition using surface tension measurements. Based on these results, the interaction parameter between the surfactant species in mixed micelles has been determined using the pseudophase separation model. Experiments were carried out with (a) the nonionic/anionic C(12)E(6)/SDS ((hexa(ethyleneglycol) mono-n-dodecyl ether)/(sodium dodecyl sulfate)), (b) amphoteric/anionic DDAO/SDS ((dodecyldimethylamine oxide)/(sodium dodecyl sulfate)), and (c) amphoteric/nonionic C(12)E(6)/DDAO mixed surfactant systems. In the case of the mixed surfactant systems containing DDAO, experiments were carried out at pH 2 and pH 8 where the surfactant was in the cationic and nonionic form, respectively. It was shown that the mixtures of the nonionic surfactants with different kinds of headgroups exhibit almost ideal behavior, whereas for the nonionic/ionic surfactant mixtures, significant deviations from ideal behavior (attractive interactions) have been found, suggesting binding between the head groups. Molecular orbital calculations confirmed the existence of the strong specific interaction between (1) SDS and nonionic and cationic forms of DDAO and between (2) C(12)E(6) and the cationic form of DDAO. In the case for the C(12)E(6)/SDS system, an alternative mechanism for the stabilization of mixed micelles was suggested, which involved the lowering in the free energy of the hydration layer. Copyright 2000 Academic Press.
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Affiliation(s)
- TP Goloub
- Institute for Surface Chemistry, Stockholm, SE-114 86, Sweden
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Söderman O, Johansson I. Polyhydroxyl-based surfactants and their physico-chemical properties and applications. Curr Opin Colloid Interface Sci 1999; 4:391-401. [DOI: 10.1016/s1359-0294(00)00019-4] [Citation(s) in RCA: 97] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Rodenas E, Valiente M, del Sol Villafruela M. Different Theoretical Approaches for the Study of the Mixed Tetraethylene Glycol Mono-n-dodecyl Ether/Hexadecyltrimethylammonium Bromide Micelles. J Phys Chem B 1999. [DOI: 10.1021/jp981871m] [Citation(s) in RCA: 138] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elvira Rodenas
- Departamento Química Física, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| | - Mercedes Valiente
- Departamento Química Física, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| | - M del Sol Villafruela
- Departamento Química Física, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
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Ohnishi S, Kameyama K, Takagi T. Characterization of a heat modifiable protein, Escherichia coli outer membrane protein OmpA in binary surfactant system of sodium dodecyl sulfate and octylglucoside. Biochim Biophys Acta 1998; 1375:101-9. [PMID: 9767139 DOI: 10.1016/s0005-2736(98)00145-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
A membrane protein, OmpA of Escherichia coli, in the process of refolding from its heat-modified form in the presence of sodium dodecyl sulfate (SDS) to its non-heated one by the addition of systematic amounts of octylglucoside (OG) was characterized by means of dynamic light scattering and the size exclusion chromatography combined with low angle laser light scattering photometry. Upon heating in the presence of SDS only, the amount of SDS bound to OmpA was increased from 1.8 to 2.3 g/g of protein and its hydrodynamic radius increased from 3.7 to 4.7 nm. On the addition of OG, the once denatured OmpA regained its original size above the weight fraction of OG in the total amount of surfactants, 0.8. During the process, the hydrodynamic radius was observed to decrease cooperatively at the weight fraction of 0.6, while no change took place in the molar mass of the protein. The refractive index increment of OmpA reflecting the amount of surfactant binding also regained the value before the heating in parallel with the change of size. Examination of the amount of surfactants bound to the membrane protein according to known properties of the binary surfactant micellar system of the surfactants showed that SDS was principally responsible for the denaturing phenomena of OmpA.
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Affiliation(s)
- S Ohnishi
- Institute for Protein Research, Osaka University, Yamadaoka 3-2, Suita, Osaka 565-0871, Japan
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