Mechanism of oil-in-water emulsification using a water-soluble amphiphilic polymer and lipophilic surfactant

Characterization of O/W Emulsions Prepared by PEG-Diisostearate Amphiphilic Random Copolymer

“…This emulsion system exhibits the properties mentioned above in Category iii , i.e., the network structure consisting of the polymeric aggregates increases the viscosity of the continuous water phase. Furthermore, the effect of adding lipophilic small-molecular weight surfactants on the emulsion droplet size was investigated 20 .…”

Thickening properties and emulsification mechanisms of new derivatives of polysaccharide in aqueous solution

“…In previous papers [19,20], we have reported the emulsification mechanisms of hydrophobically-hydrophilically modified hydroxyethyl cellulose (HHM-HEC) (Fig. 1) [21].…”

“…HHM-HEC does not behave as a surface active agent; the stability of the emulsions is assumed to be based on both a protective stabilizing layer on droplets and an associative thickening mechanism. Associative thickening of HHM-HEC is extremely strong that the emulsion preserves an O/W phase even when lipophilic surfactants such as isostearyl glyceryl ether (GE-IS) are added [20].…”

“…Several studies have been reported on HHM-HEC properties in terms of thickening properties, emulsification mechanisms [19], salt tolerance properties [22], and minimization of emulsified particles by lipophilic surfactant [20]. However, the effects of the substitution degree of the hydrophobic and hydrophilic moieties of HHM-HEC have not been examined yet.…”

Adsorção de poli(acrilamida-b-N,N-dihexilacrilamida) sobre arenito: determinação das condições para se atingir o equilíbrio real

“…Devido a sua estrutura anfifílica, esses polímeros podem exibir atividade superficial e adsorver em interfaces [3][4][5][6][7][8][9] . Esta atividade interfacial pode ser de grande interesse tecnológico nas mais variadas aplicações, tais como obtenção de emulsões utilizadas em formulações cosméticas [10] , modificação da superficie de partículas de negro de fumo [11] ou diminuição seletiva da permeabilidade de reservatórios de petróleo [12] .…”