Cross-linking of double oil-in-water-in-oil emulsions: A new way for fragrance encapsulation with tunable sustained release - Archive ouverte HAL
Article Dans Une Revue Colloids and Surfaces A: Physicochemical and Engineering Aspects Année : 2020

Cross-linking of double oil-in-water-in-oil emulsions: A new way for fragrance encapsulation with tunable sustained release

Résumé

This paper describes a new route to synthesize polymeric capsules with interesting and diverse diffusive and mechanical properties. Such capsules were obtained by free radical cross-linking copolymerization of the intermediate water phase of a double oil-in-water-in-oil (O/W/O) emulsion. Such a strategy allows separating the locus of polymerization from the fragrance-containing compartment. Indeed fragrance molecules are known to be reactive. The encapsulated species, also corresponding to the innermost oil, was a model fragrance composed of more than 10 various molecules usually used in perfumery. In a first step, the double emulsion containing a hydrophilic monomer, either Methacrylamide or Oligo(ethyleneglycol) methacrylate, and a hydrophilic cross-linker, either Tetra(ethyleneglycol) diacrylate or N,N-Methylene-bis-Acrylamide, was formulated. The influence of the cross-linker agent on the feasibility of the double emulsion was examined. Then, in a second part, the polymerization was performed. Four different systems of capsules were developed and compared in terms of diffusive and mechanical properties. We show that changing the monomer /cross-linker couple allowed modulating the capsule properties.

Domaines

Polymères
Fichier principal
Vignette du fichier
Stasse et al manuscript revised not highlighted.pdf (2.11 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02929999 , version 1 (04-09-2020)

Identifiants

Citer

Margot Stasse, Eric Laurichesse, Magali Vandroux, Tiphaine Ribaut, Valérie Héroguez, et al.. Cross-linking of double oil-in-water-in-oil emulsions: A new way for fragrance encapsulation with tunable sustained release. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020, 607, pp.125448. ⟨10.1016/j.colsurfa.2020.125448⟩. ⟨hal-02929999⟩

Collections

CNRS INC-CNRS LCPO
76 Consultations
296 Téléchargements

Altmetric

Partager

More