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Polyelectrolyte-surfactant complexes with fluotinated surfactants: A new type of material for coatings / K. H. Lochhaas in SURFACE COATINGS INTERNATIONAL, Vol. 82, N° 9 (09/1999)
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Titre : Polyelectrolyte-surfactant complexes with fluotinated surfactants: A new type of material for coatings Type de document : texte imprimé Auteurs : K. H. Lochhaas, Auteur ; A. F. Thünemann, Auteur ; Markus Antonietti, Auteur Année de publication : 1999 Article en page(s) : p. 451-455 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Polyélectrolyte 'Ammonium quaternaire polymère' 'Allylique dérivé Complexe 'Agent surface' 'Fluor Composé organique' 'Matériau revêtement' 'Structure supramoléculaire' lamellaire' 'Propriété mécanique' 'Energie filmogène' 'Etude expérimentale' 'Ammonium(diallyl diméthyl) Index. décimale : 667.9 Revêtements et enduits Résumé : Ionic surfactants and oppositely charged polyelectrolytes form spontanously well-defined complexes, which precipitate from aqueous solutions. The complex formation occurs spontanously as a result of electrostatic and hydrophobicinteractions and is strictly stoichiometric. Note de contenu : - Polyelectrolyte-surfactant complex preparation Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16826
in SURFACE COATINGS INTERNATIONAL > Vol. 82, N° 9 (09/1999) . - p. 451-455[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14307 - Périodique Bibliothèque principale Documentaires Disponible Synergies of hydrophobic polymers and surfactants on surface activity and cleaning performance / M.-E. Chateau in SOFW JOURNAL, Vol. 133, N° 4 (04/2007)
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Titre : Synergies of hydrophobic polymers and surfactants on surface activity and cleaning performance Type de document : texte imprimé Auteurs : M.-E. Chateau, Auteur ; Michael Lang, Auteur ; Markus Antonietti ; K. Rodrigues ; A. M. Carrier Année de publication : 2007 Article en page(s) : p. 76-82 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Détergents
Dodécylbenzènesulfonate
Ethoxylate d'alcool
Formulation (Génie chimique)
Hydrophobie
Polycarboxylates
Tension superficielleIndex. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Detergency is the removal of soil through a complex process involving interactions between the wash liquor, the soil and the substrate. In this paper, we describe the results of our preliminary investigations into polymer-surfactant interactions, focusing on primary detergency in laundry applications. We have studied the interaction between surfactants typically used in laundry formulations and hydrophobically modified polycarboxylate polymers. These polymers are a series of copolymers of acrylic acid and styrene with varying molar amounts of the styrene hydrophobe. The effect of a partial replacement of the surfactant by these polymers was characterized by the static surface tension measurements. These measurements predict that these polymers should aid in primary detergency. Primary detergency tests show that these polymers in combination with the anionic surfactant sodium-dodecylbenzenesulfonate (LAS) improve detergency when the LAS level is below its critical micelle concentration (CMC). Even more remarkable is the oily soil release improvement with the non-ionic alcohol ethoxylate (AE) surfactant, C13-15,7 E0, even above the CMC. This is possibly due to a change in micelle shape, which favours spontaneous emulsification, and subsequent soil release by mechanical action. Note de contenu : - MATERIALS AND METHODS : Hydrophobically modified polycarboxylate polymers - Surfactants : LAS and AE (7 EO) - Physicochemical measurements - Primary detergency test protocol for European was conditions
- RESULTS AND DISCUSSION : Polymer interactions with sodium-dodecylbenzenesulfonates (LAS) - Polymer interactions with an alcohol ethoxylate non ionic surfactantPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30984
in SOFW JOURNAL > Vol. 133, N° 4 (04/2007) . - p. 76-82[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20074 - Périodique Bibliothèque principale Documentaires Disponible