On the viscoelastic behavior of multiple emulsions

The dynamic viscoelastic behavior of multiple emulsions is investigated. A modified Palierne model is used to predict the storage and loss moduli of multiple emulsions. The multiple emulsions exhibit two relaxation domains due to relaxation of two different interfaces—internal and external. The internal interface is the interface between internal droplets and their suspending medium (primary emulsion continuous-phase). The external interface is the interface between multiple-emulsion droplets and their suspending medium (external continuous-phase). The factors affecting the dynamic viscoelastic behavior of multiple emulsions are discussed.

The linear viscoelastic behavior of multiple emulsions was investigated. Multiple emulsions exhibit two relaxation domains—one at high frequencies due to relaxation of internal interface and the other at low frequencies due to relaxation of external interface.Figure optionsDownload as PowerPoint slide