Soap Froths and Crystal Structures

Details Soap Froths and Crystal Structures Soap Froths and Crystal Structures

2000-07-14

arxiv.org/abs/cond-mat/0007256v1

Phys. Rev. Lett. 85 (2000) 3528

Physics

Condensed Matter

Soft Condensed Matter

4 pages, RevTeX, 2 included eps figures

Scientific paper

10.1103/PhysRevLett.85.3528

We propose a physical mechanism to explain the crystal symmetries found in macromolecular and supramolecular micellar materials. We argue that the packing entropy of the hard micellar cores is frustrated by the entropic interaction of their brush-like coronas. The latter interaction is treated as a surface effect between neighboring Voronoi cells. The observed crystal structures correspond to the Kelvin and Weaire-Phelan minimal foams. We show that these structures are stable for reasonable areal entropy densities.

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