Effect of calcium ions Cconcentration on the foaming power of anionic surfactants / L. Cohen in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 46, N° 6/2009 (11-12/2009)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 46, N° 6/2009 (11-12/2009) . - p. 352-356 Titre : Effect of calcium ions Cconcentration on the foaming power of anionic surfactants Type de document : texte imprimé Auteurs : L. Cohen, Auteur ; F. Soto, Auteur ; E. Sanchez, Auteur Année de publication : 2009 Article en page(s) : p. 352-356 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Calcium Mousse (chimie) Sulfonates Surfactants Tags : 'Phi-sulfonate  de  méthylester'  'Surfactants  anioniques'  'Eau  dure'  Mousse Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Water solutions based on the novel surfactant sulfoxylated methyl ester (phi-MES C16) have been studied and compared to two leading types of surfactants used today : linear alkylbezene sulfonate (LAS) and secondary alkane sulfonate(SAS) with regard to foaming power. This work describes the foam height related experimental results carried out according to the Ross Miles test where either the anionic concentration and water hardness have been varied alternatively. The experimental results obtained indicate that [Anionic]/[Ca2+] ratio strongly influences foam height and that phi-MES C16 is superior to LAS and SAS. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6809 [article]

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Identification of the products from the sulfonation of an oleic acid methyl ester / L. Cohen in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 4/2008 (07-08/2008)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 45, N° 4/2008 (07-08/2008) . - p. 178-181 Titre : Identification of the products from the sulfonation of an oleic acid methyl ester Type de document : texte imprimé Auteurs : L. Cohen, Auteur ; C. Pratesi, Auteur ; F. Soto, Auteur Année de publication : 2008 Article en page(s) : p. 178-181 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Surfactants Tags : oleic  methyl  ester  sulfonate Résumé : Sulfonation with SO3 of an oleic methyl ester has led to a mixture of sulfonates with potential properties as a surfactant, an emulsifier or even a wetting agent that can be used in detergent formulations. For the first time, the products from the sulfonation reaction with SO3 are identified. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2941 [article]

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A process for the production of Φ-sulfo fatty methyl ester sulfonates (Φ-MES) / L. Cohen in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 1/2010 (01-02/2010)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 1/2010 (01-02/2010) . - p. 18-23 Titre : A process for the production of Φ-sulfo fatty methyl ester sulfonates (Φ-MES) Type de document : texte imprimé Auteurs : L. Cohen, Auteur ; D. W. Roberts, Auteur ; C. Pratesi, Auteur Année de publication : 2010 Article en page(s) : p. 18-23 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Surfactant  Sulfoxidation  Φ-sulfo  fatty  methyl  ester  sulfonate Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Phi-Sulfo Fatty Methyl Esters sulfonates (phi-MES) were obtained via sulfoxidation of fatty acid methyl esters (FAME) with SO2, O2, and ultraviolet light of appropriate wavelength. Expectedly, these products may be used as linear alkylbenzene sulfonate (LAS) and alkyl ether sulfate (AES) partners, either in heavy-duty or in hand dishwashing liquids. Phi-MES are new anionic surfactants that can be regarded as potential components for detergent formulations and body care products as well. In this work we summarize the most relevant results of our research started fifteen years ago, on the synthesis, separation and analysis of phi-sulfo fatty methyl ester sulfonates known as phi-MES, and we update our last findings. We have to point out that we are for the time being, the only research group in the world to have published our research on phi-MES. This paper describes the optimum batch conditions for the sulfoxidation of FAME and a reaction mechanism is proposed. The paper depicts an improved workup for the separation of reaction products from non reacted methyl ester and the GC-MS analysis of phi-sulfo fatty methyl ester sulfonate is shown. Finally, an interpretation of conversion and selectivity of sulfoxydation reaction is given. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8065 [article]

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