Revisiting the influence of carboxylic ...
Type de document :
Article dans une revue scientifique
URL permanente :
Titre :
Revisiting the influence of carboxylic acids on emulsions and equilibrated SOW systems using the PIT-slope method
Auteur(s) :
Ontiveros, Jesus [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Nollet, Maxime [Auteur]
Gattefossé
3209|||Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Pierlot, Christel [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Rataj, Véronique [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Nollet, Maxime [Auteur]
Gattefossé
3209|||Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Pierlot, Christel [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Rataj, Véronique [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Titre de la revue :
Colloids and Surfaces A: Physicochemical and Engineering Aspects
Numéro :
536
Pagination :
191-197
Éditeur :
Elsevier
Date de publication :
2018-01-05
ISSN :
0927-7757
Mot(s)-clé(s) en anglais :
PIT-slope method
Fatty acids
Carboxylic acid
Sorbitan monooleate
Emulsion
Microemulsion
Fatty acids
Carboxylic acid
Sorbitan monooleate
Emulsion
Microemulsion
Discipline(s) HAL :
Chimie/Chimie organique
Chimie
Chimie
Résumé en anglais : [en]
The influence of various carboxylic acids (from C2 to C18) one equilibrated and emulsified surfactant/oil/water (SOW) systems is investigated. The PIT-slope method, based on the influence of an additive on the PIT of the ...
Lire la suite >The influence of various carboxylic acids (from C2 to C18) one equilibrated and emulsified surfactant/oil/water (SOW) systems is investigated. The PIT-slope method, based on the influence of an additive on the PIT of the C10E4/n-octane/10−2 M NaCl(aq) reference emulsion, shows that from butanoic to hexadecanoic acids, the PIT of the system is decreased. A breakdown on dPIT/dx (considering the molar fraction x) or a minimum on dPIT/dC (taking into account the weight percentage C) is obtained with octanoic acid. The phase behavior of the C10E4/carboxylic acid/n-octane/0.01 M NaCl(aq) system maintaining a molar fraction of carboxylic acid xCA = 0.2 shows that from octanoic acid, the solubility of the system is clearly enhanced explaining the breakdown obtained in the PIT-slope. The Span 80/carboxylic acid/oil/10−2 M NaCl(aq) system at a water-to-oil ratio equal to 1 is able to form O/W emulsions in the presence of some carboxylic acids, of which the alkyl chain modifies the partition of the different oligomers of Span 80. Finally, the PIT-slope method is applied to mixtures of lauric acid/sodium laurate providing a linear behavior of the PIT-slope dPIT/dx as a function of the acid/salt ratio.Lire moins >
Lire la suite >The influence of various carboxylic acids (from C2 to C18) one equilibrated and emulsified surfactant/oil/water (SOW) systems is investigated. The PIT-slope method, based on the influence of an additive on the PIT of the C10E4/n-octane/10−2 M NaCl(aq) reference emulsion, shows that from butanoic to hexadecanoic acids, the PIT of the system is decreased. A breakdown on dPIT/dx (considering the molar fraction x) or a minimum on dPIT/dC (taking into account the weight percentage C) is obtained with octanoic acid. The phase behavior of the C10E4/carboxylic acid/n-octane/0.01 M NaCl(aq) system maintaining a molar fraction of carboxylic acid xCA = 0.2 shows that from octanoic acid, the solubility of the system is clearly enhanced explaining the breakdown obtained in the PIT-slope. The Span 80/carboxylic acid/oil/10−2 M NaCl(aq) system at a water-to-oil ratio equal to 1 is able to form O/W emulsions in the presence of some carboxylic acids, of which the alkyl chain modifies the partition of the different oligomers of Span 80. Finally, the PIT-slope method is applied to mixtures of lauric acid/sodium laurate providing a linear behavior of the PIT-slope dPIT/dx as a function of the acid/salt ratio.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Autre(s) projet(s) ou source(s) de financement :
Chevreul Institute (FR 2638)
Ministère de l’Enseignement Supérieur et de la Recherche
Région Nord Pas-de-Calais
FEDER
Ministère de l’Enseignement Supérieur et de la Recherche
Région Nord Pas-de-Calais
FEDER
Établissement(s) :
ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille
CNRS
Centrale Lille
Univ. Artois
Université de Lille
Collections :
Équipe(s) de recherche :
Colloïdes catalyse oxydation (CÏSCO)
Date de dépôt :
2019-09-25T14:37:45Z
2021-03-16T11:51:14Z
2023-11-24T12:34:29Z
2021-03-16T11:51:14Z
2023-11-24T12:34:29Z
Fichiers
- Ontiveros et al_Coll Surf A_Manuscript_REV.docx.pdf
- Version finale acceptée pour publication (postprint)
- Accès libre
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