NGUYEN, Do; WALDMANN, Lea; LAPEYRE, Veronique; ARBAULT, Stephane; RAVAINE, Valerie; NICOLAI, Taco; BENYAHIA, Lazhar

doi:10.1016/j.jcis.2023.05.029

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NGUYEN, Do

WALDMANN, Lea
Institut des Sciences Moléculaires [ISM]
Institut Polytechnique de Bordeaux [Bordeaux INP]

LAPEYRE, Veronique
Institut des Sciences Moléculaires [ISM]
Institut Polytechnique de Bordeaux [Bordeaux INP]

Langue

Article de revue

Ce document a été publié dans

Journal of Colloid and Interface Science. 2023, vol. 646, p. 484-492

Résumé en anglais

Hypothesis Molecular surfactants are not able to stabilize water-in-water (W/W) emulsions, unlike nano or micro-particles, which can achieve this in some cases. However, the effect of electrostatic interactions between particles on the emulsion stability has rarely been investigated. We hypothesize that introducing charges modifies the stabilization capacity of particles and renders it both pH-and ionic strength-dependent. Experiments Charge was introduced into bis-hydrophilic and thermoresponsive dextran/polyNisopropylacrylamide microgels by replacing a small fraction of polyN-isopropylacrylamide with acrylic acid groups. The size of the microgels was obtained by dynamic light scattering. The stability and microstructure of dextran/poly(ethyleneoxide)-based W/W emulsions, was< Réduire

Mots clés en anglais

Water/Water emulsion

Bis-hydrophilic

Thermoresponsive

Microgels

pH sensitive

Ionic strength

Pickering effect

URI

https://oskar-bordeaux.fr/handle/20.500.12278/199534

DOI

http://dx.doi.org/10.1016/j.jcis.2023.05.029

Project ANR

Réactions enzymatiques oscillantes dans des gouttes aqueuses métastables - ANR-20-CE06-0011

Unités de recherche

CBMN : Chimie & de Biologie des Membranes & des Nano-objets - UMR 5248