Osmotic Pressure and Structures of Monodisperse Ordered Foam

Reinhard Höhler (1) , Yann Yip Cheung Sang (1) , Elise Lorenceau (1) , Sylvie Cohen-Addad (1)

1 LPMDI - Laboratoire de Physique des Matériaux Divisés et des Interfaces

We present an experimental and numerical study of the osmotic pressure in monodisperse ordered foams as a function of the liquid fraction. The data are compared to previous results obtained for disordered monodisperse and polydisperse concentrated emulsions. Moreover, we report a quantitative investigation of the transition from a bubble close packing to a bcc structure as a function of the liquid volume fraction. These findings are discussed in the context of theoretical models that have been proposed in the literature.

Mots clés: Foam; osmotic pressure; structure; transition

Domaines: Physique Générale [physics.gen-ph]; Matière Molle [cond-mat.soft]; Biomécanique [physics.med-ph]

Reinhard Höhler, Yann Yip Cheung Sang, Elise Lorenceau, Sylvie Cohen-Addad. Osmotic Pressure and Structures of Monodisperse Ordered Foam. Langmuir, 2008, 24 (2), pp.418-425. ⟨10.1021/la702309h⟩. ⟨hal-00347967⟩