Title :

Self-aggregation, dilational surface rheology and foaming properties of 1-O- dodecyl diglyceryl ether compared to other non-ionic surfactants

Author(s) :

Delforce, Lucie [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Rataj, Véronique [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Lebeuf, Raphael [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Aubry, Jean-Marie [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Ontiveros, Jesus [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Conference title :

Formula XI

City :

Lille

Country :

France

Start date of the conference :

2023-07-03

HAL domain(s) :

Chimie/Chimie organique

English abstract : [en]

Diglyceryl alkyl esters are good foaming agents but the ester linker can be sensitive to pH, chemicals and temperature unlike the ether function. In this work, the foaming properties of a diglyceryl ether, namely 1-O-dodecyl ...
Show more >Diglyceryl alkyl esters are good foaming agents but the ester linker can be sensitive to pH, chemicals and temperature unlike the ether function. In this work, the foaming properties of a diglyceryl ether, namely 1-O-dodecyl diglyceryl ether (C 12 Gly 2 ), are compared to those of n-dodecyl-β-D-maltoside (C 12 Glu 2 ) and pentaethyleneglycol monododecyl ether (C 12 E 5 ). The self-aggregation behaviour of C 12 Gly 2 and adsorption at the air-water interface has been first investigated. For the three surfactants, the dynamic response of the interface, measured in oscillatory bubble interfacial rheology experiments below CMC, is compared and put in relation with their foaming properties. In particular, the foamability by air sparging at a concentration of 10 times the CMC, the foam stability over 1h and the foam density are quantified. It is shown that C 12 Gly 2 forms liquid crystals at low concentration (~10 CMC). C 12 E 5 , with a lower elasticity high frequency limit ��!, forms unstable foam with quick drainage and breakdown, whereas higher ��! surfactants C 12 Gly 2 and C 12 Glu 2 form much more stable foams, resulting from hydrogen bonds between the polar heads of C 12 Glu 2 and C 12 Gly 2 . Differences in C 12 Gly 2 and C 12 Glu 2 foams lay in initial bubble size (smaller for the C 12 Glu 2 ). In C 12 Gly 2 foam, the main destabilization phenomenon is coalescence over drainage, and the foam volume only decreases by 30% in 1 hour.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Colloïdes catalyse oxydation (CÏSCO)

Submission date :

2023-11-14T16:07:36Z
2023-11-14T19:26:35Z