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.
Pal
Rajinder
R
Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada. rpal@cape.uwaterloo.ca