Mechanism of interaction between ionic surfactants and polyglycol ethers in water

Schwuger, M. J.

doi:10.1016/0021-9797(73)90395-0

Cited by 269 publications

(205 citation statements)

References 14 publications

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“…By comparing the relative changes in the scattering profiles, we found that SDS has the strongest interaction with P123 [11,42], followed by Brij 35 and then C12TAB which showed the weakest interaction [46,47].…”

Section: Interaction Between P123 In the Presence Of Surfactantsmentioning

confidence: 97%

Probing competitive interactions in quaternary formulations

Mansour

Cattoz

Heenan

et al. 2015

Journal of Colloid and Interface Science

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Hypothesis: The interaction of amphiphilic block copolymers of the poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) group with small molecule surfactants may be "tuned" by the presence of selected alcohols, with strong interactions leading to substantial changes in (mixed) micelle morphology, whilst weaker interactions lead to coexisting micelle types. Experiments:The nature and the strength of the interactions between Pluronic P123 (EO20PO70EO20) and small molecule surfactants (anionic sodium dodecylsulfate, SDS, C12SO4Na), (cationic dodecyltrimethylammonium bromide, C12TAB) and (non-ionic polyoxyethylene(23)lauryl ether, Brij 35, C12EO23OH) is expected to depend on the partitioning of the short, medium and long chain alcohols (ethanol, hexanol and decanol respectively) and was probed using tensiometry, pulsed-gradient spin-echo nuclear magnetic resonance (PGSE-NMR) and small-angle neutron scattering (SANS). Findings:The SANS data for aqueous P123 solutions with added alcohols were well described by a charged spherical core/shell model for the micelle morphology. The addition of the surfactants led to significantly smaller, oblate elliptical mixed micelles in the absence of alcohols. Addition of ethanol to these systems led to a decrease in the 2 micelle size, whereas larger micelles were observed upon addition of the longer chain alcohols. NMR studies provided complementary estimates of the micelle composition, and the partitioning of the various components into the micelle.

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Section: Interaction Between P123 In the Presence Of Surfactantsmentioning

confidence: 97%

Probing competitive interactions in quaternary formulations

Mansour

Cattoz

Heenan

et al. 2015

Journal of Colloid and Interface Science

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“…By means of conductivity measurements, it is possible to observe the onset of surfactant aggregation in the polymer chains as well as the polymer saturation through the surfactant. [46][47][48][49] In the titration process for strong polyelectrolyte case, the electrical conductivity variation is proportional to the amount of added surfactant, whereas for weak polyelectrolytes, such as PEI, it is dependent on the dissociation equilibriums that are related to the degree of ionization of the polymer chain.The variations of the specific conductivity and pH value during the titration of a PEI solution 0.2% m/v with known amounts of SDS and NaC are given in Figures 1A and 2A, respectively. Figures 1B and 2B show the specific conductivity and pH profiles at the beginning of each titration procedure.…”

mentioning

confidence: 99%

Supramolecular complexes formed by the association of poly(ethyleneimine) (PEI), sodium cholate (NaC) and sodium dodecyl sulfate (SDS)

Felippe

Bellettini

Eising

et al. 2011

J. Braz. Chem. Soc.

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A formação de complexos supramoleculares em solução aquosa pela associação do polieletrólito poli(etilenoimina) (PEI) com misturas do biossurfactante colato de sódio (NaC) e o surfactante aniônico dodecil sulfato de sódio (SDS) foi aqui investigado usando as técnicas de condutivimetria, tensiometria, fluorimetria, espalhamento de raios X a baixos ângulos (SAXS) e medidas de pH. Os resultados de fluorimetria, condutivimetria e medidas de pH levaram à conclusão de que os monômeros de NaC e SDS ligam-se primeiramente em sítios específicos das cadeias do polieletrólito PEI via interação eletrostática e posteriormente através de associação cooperativa. A interação do NaC com o PEI é mais fraca do que a interação do SDS com o PEI, porém, a adição de SDS ao sistema NaC-PEI levou à formação de micelas mistas SDS-NaC que interagiram fortemente com o polieletrólito PEI. Os resultados de SAXS sugeriram que o complexo supramolecular possui característica elipsoidal e essa forma não depende da concentração de surfactante nem da χ NaC .The formation of supramolecular complexes produced by association of poly(ethyleneimine) (PEI) and mixtures of sodium cholate (NaC) and sodium dodecyl sulfate (SDS) was investigated by pH, electrical conductivity, fluorescence spectroscopy and small angle X-ray scattering (SAXS) measurements. The fluorescence linked to previously measured values of pH and conductivity led to the conclusion that NaC and SDS molecules firstly bind to specific sites of the PEI chains via electrostatic interaction and secondly undergo self-assembly through regular cooperative association. The interaction of NaC with the polyelectrolyte PEI is weaker than that of SDS and the addition of SDS to the NaC-PEI system led to the formation of mixed NaC-SDS micelles which stronger interact with PEI. The SAXS results suggested that the micellar aggregates have a considerably ellipsoidal characteristic and the micellar shape is not affected by the surfactant concentration nor by χ NaC .Keywords: sodium cholate, sodium dodecyl sulfate, poly(ethyleneimine), polymer-surfactants interaction IntroductionBile salts are naturally-occurring amphiphilic molecules. They are physiologically important in the solubilization and transport of fats and lipids. The structure of bile salts in water has been extensively investigated. Although they are comparable to common surfactants, the general conclusion is that biosurfactants self-assemble in a different way than the standard surfactants. [1][2][3][4][5][6][7][8][9][10][11][12][13] Poly(ethyleneimine) (PEI) is a member of a large family of water-soluble polyamines having different molecular weights (M w ) and polymer architectures. Polyamines are weak bases and exhibit a cationic character depending on the degree of protonation. PEI has been extensively studied (particularly the branched form) due to its intense use in the formulation of drugs, thickeners, flocculating agents, personal care products, food products, detergents and adhesives. It has also been used for biological proposes to p...

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“…1 The interaction between charged and uncharged polymers and ionic surfactants have been extensively studied and discussed in many review articles. 2,3 The behavior of specific components in these systems have been investigated by techniques which can probe, directly or indirectly. Surfactant monomers, micellar aggregates, polymer/surfactant complexes, and single polymers, as well as different macroscopic parameters characterizing the physical properties of the solution are some examples.…”

Section: Introductionmentioning

confidence: 99%

“…1 Indeed many synthetic polymers are known only to interact with anionic surfactants, and show little or no affinity to cationics. [2][3][4][5] In some cases T 2 have not seen for cationics. In comparison with anionic surfactant/neutral polymer systems, there are very little information concerning quantitative binding characteristics of cationic surfactants.…”

Section: Introductionmentioning

confidence: 99%

The Interaction between Hexadecyltrimethylammonium Bromide to Poly (Ethylene Glycol) with Different Molecular Weights and Some Schiff-Bases Investigated by Surfactant Ion Selective Electrode

Ghoreishi

Navid²

2005

Bulletin of the Korean Chemical Society

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The interaction between ionic surfactants and different nonionic molecules and polymers are studied using ion surfactant selective electrode. From the experimental data, critical concentrations of the interaction and binding process are evaluated. The interaction between hexadecyltrimethylammonium bromide (HTAB) with polyethylene glycol (PEG) in three molecular weights (1000, 10000 and 100000) and also schiff-bases, 2-[2-carboxyphenyl nitrilomethylidyne]-phenol (ortho CNP), 2-[3-carboxyphenyl nitrilomethylidyne]-phenol (meta CNP)and 2-[4-carboxyphenyl nitrilomethylidyne]-phenol (para CNP) with the potentiometric method were investigated using HTAB membrane selective electrode. In the case of PEG with increasing molecular weights more interaction to HTAB occurs. The electromotive force (EMF) data also showed that interaction between para CNP with HTAB is more than the other schiff-bases. It seems this case related to less space interference of COOH group for that compound. The onset of binding (T 1 ) of course is the same for three schiffbase molecules.

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Mechanism of interaction between ionic surfactants and polyglycol ethers in water

Cited by 269 publications

References 14 publications

Probing competitive interactions in quaternary formulations

Probing competitive interactions in quaternary formulations

Supramolecular complexes formed by the association of poly(ethyleneimine) (PEI), sodium cholate (NaC) and sodium dodecyl sulfate (SDS)

The Interaction between Hexadecyltrimethylammonium Bromide to Poly (Ethylene Glycol) with Different Molecular Weights and Some Schiff-Bases Investigated by Surfactant Ion Selective Electrode

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