Rheology: how to characterize and to predict the evolution of W/O/W multiple emulsions

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Abstract
Synopsis: The purpose of this work was to compare the evolution of three multiple emulsions (ME) by different controls. The series of water‐in‐oil‐in‐water (W/O/W) multiple emulsions were elaborated and controlled by both the usual analyses which permitted the classification of the multiple emulsions with respect to their thermal stability, and the rheological oscillatory and flow analyses which are polyvalent methods. Further, these allow the ‘identity card’ of the multiple emulsion to be drawn, its evolution to be followed, and moreover, its behaviour being foreseen by simulating ageing by shear. Three different behaviours are observed; a destructuration, a phase inversion and stability.