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Synthesis and properties of some N-acylethylenediamine triacetic acid chelating surfactants / M. M. A. El-Sukkary in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 1/2010 (01-02/2011)
[article]
Titre : Synthesis and properties of some N-acylethylenediamine triacetic acid chelating surfactants Type de document : texte imprimé Auteurs : M. M. A. El-Sukkary, Auteur ; E. A. Soliman, Auteur ; D. A. Ismail, Auteur ; S. M. El Rayes, Auteur ; M. A. Saad, Auteur Année de publication : 2011 Article en page(s) : p. 82-86 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Surfactants Tags : 'Acide triacétique N-acyléthylènediamine' 'Surfactant multifonctionnel' 'Surfactants chélatés' Chélatant Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : A new kind of surfactants with chelating properties named N-acylethylenediamine triacetate (N-acyl ED3A) of different hydrocarbon chain lengths were synthesized from anhydrous ethylene diamine, fatty acid chlorides (Capryloyl, lauroyl, myristoyl, palmitoyl, stearoyl or oleoyl chloride) and chloroacetic acid. The chemical structures of the prepared compounds were confirmed using different spectroscopic techniques, primarily Fourier transform infrared spectroscopy and nuclear magnetic resonance. The surface properties including surface and interfacial tension, foaming height, emulsification power, calcium ion stability, stability to hydrolysis and critical micelle concentration (CMC) were determined. The trisodium N-acylethylenediamine triacetates have been found to combine the properties of strong surfactancy, extreme mildness with a high tolerance to water hardness, and ability to chelate metal ions, which indicates a promising application prospect in many fields. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10678
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 48, N° 1/2010 (01-02/2011) . - p. 82-86[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012778 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of some novel sulfonamide derivatives and investigating their biocidal activity in cooling towers / A. M. Badawi in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 2/2011 (03-04/2011)
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Titre : Synthesis of some novel sulfonamide derivatives and investigating their biocidal activity in cooling towers Type de document : texte imprimé Auteurs : A. M. Badawi, Auteur ; D. E. Mohamed, Auteur ; A. A. Hafiz, Auteur ; S. M. Ahmed, Auteur ; Y. M. Gohar, Auteur ; E. A. Soliman, Auteur ; M. S. A. Sanan, Auteur Année de publication : 2011 Article en page(s) : p. 154-159 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens
Sulfonamides
Tour de refroidissementIndex. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : A novel series of dibenzothiophenedioxide sulphonamide derivatives were synthesized and tested as antimicrobial agents. The chemical structures of the prepared compounds were confirmed by micro elemental analysis, fourier transform infrared (FT-IR) and proton nuclear magnetic resonance spectroscopy (H-NMR). The surface parameters of two of the prepared compounds were determined at 35 °C including, surface tension, effectiveness, maximum surface excess and minimum surface area. Also the standard free energy of micellization and adsorption were recorded. The results showed that the prepared sulphonamides have good surface properties and effective antimicrobial activity against thirty three test organisms isolated from cooling towers. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11133
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 48, N° 2/2011 (03-04/2011) . - p. 154-159[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012916 - Périodique Bibliothèque principale Documentaires Disponible