On the origin of the stability of foams made from catanionic surfactant mixtures

Varade, Dharmesh; Carriere, David; Arriaga, Laura R.; Fameau, Anne‐Laure; Rio, Emmanuelle; Langévin, D.; Drenckhan, Wiebke

doi:10.1039/c1sm05374d

Cited by 127 publications

(111 citation statements)

References 58 publications

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“…However, other fatty acid aggregated structures could be efficient to produce similar foams [58][59][60][61]. For example, foams produced from myristic acid and cetyltrimethylammonium chloride have already been studied at room temperature [58].…”

mentioning

confidence: 99%

Responsive self-assemblies based on fatty acids

Fameau

Arnould

Saint‐Jalmes

2014

Current Opinion in Colloid & Interface Science

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mentioning

confidence: 99%

Responsive self-assemblies based on fatty acids

Fameau

Arnould

Saint‐Jalmes

2014

Current Opinion in Colloid & Interface Science

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“…Larger assemblies can be trapped in the Plateau borders (PBs) inside the foam, increase the local viscosity of the liquid, and slow down the drainage phenomenon [34]. Moreover, self-assemblies such as vesicles can adsorb at the air/water interface forming a thick barrier with high compression rigidity that could slow down the coalescence and the coarsening processes [36,44,45]. Before UV illumination, spherical micelles were present inside the foam.…”

Section: Effect Of the Uv Light On The Foaming Properties Of Fatty Acmentioning

confidence: 98%

pH-responsive fatty acid self-assembly transition induced by UV light

Arnould

Gaillard

Fameau

2015

Journal of Colloid and Interface Science

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“…High values of surface viscoelasticity can potentially lead to the suppression of marginal regeneration and a reduced rate of foam film drainage [24][25][26] and coalescence [3,12] therefore, a good correlation between the liquid film or foam stability and the surface viscoelasticity has been found [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42]. If the enhanced viscoelasticity is developed on airwater interface during foam generation (at surface ages < 1s), foamability can also be enhanced.…”

Section: Surface Viscoelasticitymentioning

confidence: 99%

Foamability of sodium dodecyl sulfate solutions: Anomalous effect of dodecanol unexplained by conventional theories

Wang

Nguyen

Farrokhpay

2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. • Antifoam efficacy of DOH and decreased bubble surface potential explain the decreased foamability of pre-CMC SDS-DOH solutions.• Complex effect of surfactant mixtures on foamability is demonstrated.4 AbstractConventional theories indicate that surfactant solutions with low surface tension, fast adsorption kinetics, and high interfacial viscoelasticity increase foamability. These theories are applicable to single surfactants of pre-CMC. Here, we examine whether these theories are applicable for surfactant mixtures. Specifically, we investigated the foamability of sodium dodecyl sulfate (SDS)-dodecanol (DOH) solutions. We found that the foamability of SDS-DOH solutions exhibited 'anomalies' that were unexplained by conventional theories. The remarkable decrease in the foamability of SDS solutions caused by the addition of DOH could not be easily explained by the theories of surface tension and surface viscoelasticity.Instead, we proposed alternative mechanisms to resolve these unexpected results. Below the DOH solubility limit, the replacement of SDS molecules by DOH molecules at the air-water interface results in a reduced surface potential, leading to a lower foamability. The antifoam effects of DOH droplets can account for the reduced foamability above this limit. This paper highlights the complex effect of surfactant mixtures on foamability.

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On the origin of the stability of foams made from catanionic surfactant mixtures

Cited by 127 publications

References 58 publications

Responsive self-assemblies based on fatty acids

Responsive self-assemblies based on fatty acids

pH-responsive fatty acid self-assembly transition induced by UV light

Foamability of sodium dodecyl sulfate solutions: Anomalous effect of dodecanol unexplained by conventional theories

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