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Equilibrium onions?

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Original languageEnglish
Pages (from-to)888-894
Number of pages7
JournalEurophysics Letters
Volume66
Issue number6
DOIs
Publication statusPublished - Jun 2004

Abstract

We demonstrate the possibility of a stable equilibrium multi-lamellar ("onion") phase in pure lamellar systems (no excess solvent) due to a sufficiently negative Gaussian curvature modulus. The onion phase is stabilized by non-linear elastic moduli coupled to a polydisperse size distribution (Apollonian packing) to allow space-filling without appreciable elastic distortion. This model is compared to experiments on copolymer-decorated lamellar surfactant systems, with reasonable qualitative agreement.

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