Swelling kinetics of the onion phase

H Diamant, M E Cates

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

A theory is presented for the behavior of an array of multi-lamellar resides (the onion phase) upon addition of solvent. A unique feature of this system is the possibility to sustain pressure gradients by tension in the lamellae. Tension enables the onions to remain stable beyond the unbinding point of a flat lamellar stack. The model accounts for various concentration profiles and interfaces developing in the onion as it swells. In particular, densely packed "onion cores" are shown to appear, as observed in experiments. The formation of interfaces and onion cores may represent an unusual example of stabilization of curved interfaces in confined geometry.

Original languageEnglish
Pages (from-to)223-232
Number of pages10
JournalThe European Physical Journal E (EPJ E)
Issue number2
Publication statusPublished - Feb 2001


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