Phase behavior of mixed solution of a glycerin-modified cationic surfactant and an anionic surfactant

Tsuchiya, Koji; Ishikake, Jun; Kim, Tae Seong; Ohkubo, Takahiro; Sakai, Hideki; Abe, Masahiko

doi:10.1016/j.jcis.2006.07.075

Cited by 24 publications

(21 citation statements)

References 48 publications

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“…In equations (2) and (3) region followed by decrease in magnitude when concentration exceeds equimolarity which can be attributed to the steric hindrance offered by more TC molecules as earlier reported in many catanionic mixtures [36][37][38][39][40]. But at αTC = 0.9 in case of TC + SDBS, the highest β m value were found to be present when which might be due to the reason that more TC molecules orient the bulkier headgroups of SDBS molecules in such a array that they release the TC molecules and reduces repulsive interactions there.…”

Section: Micellar Parameterssupporting

confidence: 58%

Effect of surfactant head group on micellization and morphological transitions in drug-Surfactant catanionic mixture: A multi-technique approach

Vashishat

Chabba

Mahajan

2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Micellar Parameterssupporting

confidence: 58%

Effect of surfactant head group on micellization and morphological transitions in drug-Surfactant catanionic mixture: A multi-technique approach

Vashishat

Chabba

Mahajan

2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…We expect that the glycerin unit covalently bound to the amine or quaternary ammonium headgroup results in increased water solubility compared with glycerin-unmodified compounds, such as N,N-dimethylhexadecylamine or hexadecyltrimethylammonium chloride and hence allows highly hydrophilic stoichiometric complex systems to form, which do not precipitate even at an equivalent molar mixing with alkyl dicarboxylic acid. This expectation is supported by the experimental results in which the glycerin-modifi ed cationic surfactant C16Q narrows the precipitation region in its three-phase diagram with an anionic surfactant and water and the catanionic surfactants form vesicular assemblies which are well-dispersed in aqueous media 15 . The alkyl dicarboxylic acid compounds reported herein were bola-type, as shown in Fig.…”

Section: Introductionmentioning

confidence: 64%

“…These chemicals were of analytical grade and used without further purifi cation. The cationic surfactant C16Q was synthesized according to the procedure mentioned in our previous paper 15 . The water used in this study was deionized with a Barnstead NANO Pure Diamond UV system and fi ltered with a Millipore membrane fi lter 0.22 m pore size .…”

Section: Methodsmentioning

confidence: 99%

Catanionic Mixtures Forming Gemini-like Amphiphiles

et al. 2011

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“…The inflection on the isotherms in the region of small coverage of the sorbents (Fig. 2a,b) is probably connected with some prevalence of the equimolar composition of the adsorbed layer and with change in its structure as a result of the formation of different aggregates, characteristic of interaction of anionic and cationic surfactants [8]. The sharp growth of the adsorption values (Fig.…”

Section: Resultsmentioning

confidence: 87%

“…2, a and b the following should be noted. The behavior of the aqueous solutions of the binary mixture SDS/CPB, in particular the general shapes of the curves and the large negative value of b for equimolar mixtures (a = 0.5) are explained by the strong electrostatic attraction of the oppositely charged surfactant ions and the catanionic surfactants formed (CPDS -cetylpyridinium dodecylsulfate) [7,8]. However the excess interaction between the surfactants in the mixed aggregates in comparison with interactions of surfactants of one type in individual micelles is characteristic for other corresponding components in the system (b < 0, see Table 1).…”

Section: Resultsmentioning

confidence: 99%

Behavior of surface-active substances in aqueous solution and on solid surfaces

et al. 2009

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The interactions of cationic (CSA), anionic (ASA), and nonionic surfactants (NSA) with each other in aqueous solution and on solid surfaces are studied. To establish the mechanism of the adsorption of ASA and NSA from aqueous solutions onto layered silicates, modified with CSA, data on the interaction of corresponding surfactants in aqueous solutions of binary mixtures were used. It was shown that interactions between CSA and ASA led to the formation of cationic surfactants both in solution and on the surfaces of modified aluminosilicates. It was concluded that by analogy with solutions of binary mixtures of NSA on modified silicate surfaces, interaction occurs only with physically adsorbed CSA. With cations of modifier, chemically bonded to the active centers of the silicates, NSA reacts via a hydrophobic mechanism.It is known that surface-active substances (SAS) belong to the group of toxic organic contaminants. Solid adsorbents are widely used to remove these substances from aqueous media. In particular, natural aluminosilicates are effective at adsorbing of cationic surfactants (CSA) [1] and organic substituted surfactants -anionic (ASA) and nonionic (NSA) [2]. However for rational use of sorbents it is necessary to have a clear understanding of the mechanism of adsorption. Since the question of the interaction of surfactants of different types with organic substituted layered silicates in rigid structural cells is not sufficiently well studied, the establishment of the mechanism of ASA and NSA adsorption with such materials is the object of this work. For the interpretation of the adsorption data which characterize the interaction of the indicated surfactants with the surface of the sorbents studied, we used the revealed mechanisms of the interaction of surfactants in aqueous solutions of binary mixtures (ASA/CSA and NSA/CSA). EXPERIMENTALThe following surfactants were chosen for study: cationic (CSA) -cetylpyridinium bromide (CPB) containing 98% of the basic substance, nonionic (NSA) -oxyethylated nonylphenol (AF 9 -10) containing 99% of the basic substance, and anionic (ASA) -once recrystallized sodium dodecylsulfate (SDS), chemically pure. The interactions of the surfactants in aqueous solutions were studied on the basis of the surface tension isotherms (s) of solutions of individual surfactants and their binary mixtures with different molar ratios of surfactants. The measurements of s were carried out by the film rupture method (the du Nui method). From the isotherm of the surface tension using Rubingh approach [3] we calculated the interaction parameter (b) and the composition of the mixed aggregates (micelles), expressed via the mole fraction of one of the components (X).

show abstract

Phase behavior of mixed solution of a glycerin-modified cationic surfactant and an anionic surfactant

Cited by 24 publications

References 48 publications

Effect of surfactant head group on micellization and morphological transitions in drug-Surfactant catanionic mixture: A multi-technique approach

Effect of surfactant head group on micellization and morphological transitions in drug-Surfactant catanionic mixture: A multi-technique approach

Catanionic Mixtures Forming Gemini-like Amphiphiles

Behavior of surface-active substances in aqueous solution and on solid surfaces

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