Article Dans Une Revue Journal de Physique IV Proceedings Année : 1993

Lamellar phase under shear : SANS measurements

Olivier Diat
D. Roux
  • Fonction : Auteur
F. Nallet

Résumé

The static properties of lyotropic lamellar phases have been investigated for a long time. Recently, we studied the dynamic properties and more specifically the effect of shear on these phases. Using different techniques (conoscopy, light, neutron and X-ray scattering, microscopy and rheology), the different stationary orientation states of a lamellar phase (in a quaternary mixture water-SDS-pentanol-dodecane) have been analyzed ; in this paper we describe the analysis of the oriented state of these lamellar phase at high shear rates ; we consider a Gaussian distribution to define the mosaicity of this orientation where the normal of the membrane is parallel to the velocity gradient.

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jpa-00252270 , version 1 (04-02-2008)

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Olivier Diat, D. Roux, F. Nallet. Lamellar phase under shear : SANS measurements. Journal de Physique IV Proceedings, 1993, 03 (C8), pp.C8-193-C8-204. ⟨10.1051/jp4:1993839⟩. ⟨jpa-00252270⟩

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