Novel O/W Emulsions by Utilizing a Vesicle/Disc Transformation of Polyether Modified Silicone

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Other Title
  • ポリエーテル変性シリコーンのベシクル／ディスク構造転移を利用したO/W乳化

Abstract

<p>Emulsification is an important technology in the industrial fields. Emulsions are non-equilibrium state; therefore, the variables in emulsification research are numerous and complicated to analyze, and as a result, many industrial applications have had to rely on empirical rules. In this study, emulsions with a lamellar liquid crystalline phase as an adsorption layer at the emulsion interface were investigated. The characteristics of O/W emulsions formed with the excess aqueous and oil phases separated from the lamellar liquid crystalline phase were investigated based on the phase equilibrium of the ternary system.</p><p>As a result, it was found that by agitating the aqueous phase containing vesicles of polyether modified silicone together with the oil phase, an emulsion with a uniform interfacial membrane of lamellar liquid crystalline phase could be obtained. The emulsions were found to have good stability against coalescence. The process of transformation from vesicles to the interfacial membrane during the emulsification process was clarified by a freeze-fracture transmission electron micrograph and the calculation of interfacial membrane thickness based on precise particle size analysis. It is expected that this research will lead to the evolution of various functionalities in products in the fields of cosmetics, household products, food, pharmaceuticals, and others.</p>

Journal

  • Oleoscience

    Oleoscience 23 (1), 17-28, 2023

    Japan Oil Chemists' Society

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