L. Ramos et al 2004 Europhys. Lett. 66 888 doi:10.1209/epl/i2003-10260-6
L. Ramos1, D. Roux2, P. D. Olmsted3 and M. E. Cates4
Show affiliationsWe 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.
Soft matter, liquids and polymers
Issue 6 (June 2004)
Received 30 July 2003, accepted for publication 15 April 2004, in final form 15 April 2004
L. Ramos et al 2004 Europhys. Lett. 66 888
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