Interaction between cationic and conventional nonionic surfactants in the mixed micelle and monolayer formed in aqueous medium

Negm, Nabel A.; Sabagh, Ahmad M. El

doi:10.1590/s0100-40422011000600018

Cited by 25 publications

(9 citation statements)

References 31 publications

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“…It is predictable since the CMC values of the nonionic surfactants are related to the number of carbon atoms in their hydrophobic chain. Increasing the hydrophobic chain length reduce the CMC value [12]. Addition of cationic surfactant to nonionic surfactants results in decreasing the CMC values while there is no significant change in surface tension.…”

Section: Critical Micelle Concentrationmentioning

confidence: 94%

Surface Properties of an Alcohol Alkoxylate in the Presence of a Cationic Surfactant

Vafakish¹,

Barari²

2016

J Surfact & Detergents

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Alcohol alkoxylate was prepared via propoxylation of an industrial alcohol ethoxylate. The chemical structure of the prepared compound was confirmed using FT‐IR and the physical properties were evaluated by the usual methods according to ASTM. The surface properties of the aqueous solution of alcohol alkoxylate were determined with or without addition of a cationic surfactant in comparison to the corresponding alcohol ethoxylate. The measured parameters were surface tension, CMC, maximum surface excess, minimum surface area and the interaction parameter (β). These data indicate that surface properties changed due to the attractive complex formation in the mixed system.

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Section: Critical Micelle Concentrationmentioning

confidence: 94%

Surface Properties of an Alcohol Alkoxylate in the Presence of a Cationic Surfactant

Vafakish¹,

Barari²

2016

J Surfact & Detergents

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“…The solubilization in binary micellar systems has frequently been used with the objective of achieving the synergistic effect. [27][28][29] In these studies the synergistic effect was positive because it increased the solubility of hydrophobic drugs and assigned some systems thermoreversible characteristics.…”

Section: Solubilization Of Griseofulvinmentioning

confidence: 99%

Binary systems of Brij® surfactants with Pluronic® F127 as griseofulvin carrier

et al. 2017

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E 100 ) were prepared in the proportions 10/90, 30/70, 50/50 and 70/30, respectively. The characterizations were carried out by tube inversion, rheology, particle size, and theoretical cmcs. The griseofulvin solubilization tests were performed at 25 and 37 °C in micellar solutions of 1 wt. % and quantified by UV/Vis. According to the rheological data, the presence of F127 make the F127/Brij 78 70/30 and F127/Brij 98 70/30 mixtures thermoresponsive at concentrations of 30 and 35 wt.%, with transition fluid/gel in the range of 28-30 °C, ideal for topical use. All of the F127 / Brij 700 mixtures showed moderate distribution polydisperse (PDI < 0.4), as well as mixtures of F127 / Brij 98, with the exception of the mixture with ratio 30/70. Mixtures of F127 / Brij 78 had wide polydisperse distribution (PDI > 0.4). The optimal mixing for oral application would be of F127/Brij 78 because it exhibits greater solubilizing capacity (S cp ) of griseofulvin at temperatures of 25 to 37 °C when compared to F127 alone.

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“…This may be due to the coiling of the ethoxylated chains of the nonionic surfactant (C 18-1 E 20 ) around the charged head group (pyridinium ion) of the cationic surfactant molecule (CPC), hence reducing the electrostatic repulsion between positively charged surfactant head groups, as well as to steric interaction between the tails which favours micelle formation [19]. As a result of the presence of a cationic head group in combination with a bulky nonionic polyoxyethylene head group in the mixed micelle, the CMC value is reduced and hence non-ideality is observed [20].…”

Section: Static Surface Tension Studies and Mixed Micelle Formationmentioning

confidence: 99%

“…Commercially, nonionic surfactants containing fatty alcohol ethoxylates are used in pharmaceutical and healthcare applications. Polyoxyethylene (20) oleyl ether (C 18-1 E 20 ) is generally used for high-level soluble expression of different integral membrane proteins [8], whereas cetylpyridinium chloride (CPC) is used, for instance, in mouthwashes and nasal sprays. It can also be used as an antiseptic which kills microorganisms, and it also helps to reduce dental plaque and gingivitis [9].…”

Section: Introductionmentioning

confidence: 99%

Mixed Micellization of Polyoxyethylene (20) Oleyl Ether with Cetylpyridinium Chloride at the Air–Water Interface

Desai

Bhagwat

2016

J Surfact & Detergents

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Adsorption and micellization behaviour of binary surfactant mixtures containing a nonionic surfactant, polyoxyethylene (20) oleyl ether (C18‐1E20), and a cationic surfactant, cetylpyridinium chloride (CPC), was studied at the air–water interface using the Wilhelmy plate method. A pseudo‐phase separation model was used to analyse mixed micellization. A Margules equation with one constant (interaction parameter, β) was fitted to the nonideal behaviour of the mixed surfactant system. This system shows synergism (β = −6.0) for micellization. The dynamic behaviour and foamability of binary mixtures at the same bulk concentration and at different mole fractions were also studied using drop volume and horizontal impinging jet methods, respectively. It was found that with an increase in the mole fraction of C18‐1E20, the foamability of a mixture increases and t* value decreases.

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Interaction between cationic and conventional nonionic surfactants in the mixed micelle and monolayer formed in aqueous medium

Cited by 25 publications

References 31 publications

Surface Properties of an Alcohol Alkoxylate in the Presence of a Cationic Surfactant

Surface Properties of an Alcohol Alkoxylate in the Presence of a Cationic Surfactant

Binary systems of Brij® surfactants with Pluronic® F127 as griseofulvin carrier

Mixed Micellization of Polyoxyethylene (20) Oleyl Ether with Cetylpyridinium Chloride at the Air–Water Interface

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