Phys. Rev. Lett. 95, 078302 (2005) [4 pages]

Shear-Induced Collapse in a Lyotropic Lamellar Phase

Abstract

References

Citing Articles (4)

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L. Porcar^1,2, G. G. Warr³, W. A. Hamilton⁴, and P. D. Butler¹
¹National Institute of Standards and Technology, Center for Neutron Research, Gaithersburg, Maryland 20899, USA
²University of Maryland, College Park, Maryland 20742, USA
³School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
⁴Condensed Matter Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

Received 15 December 2004; revised 3 May 2005; published 11 August 2005

An entropically stabilized cetylpyridinium chloride, hexanol, and heavy brine lyotropic lamellar phase subjected to shear flow has been observed here by small angle neutron scattering to undergo collapse of smectic order above a threshold shear rate. The results are compared with theories predicting that such a lamellar phase sheared above a critical rate should lose its stability by a loss of resistance to compression due to the suppression of membrane fluctuations.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.95.078302

DOI:

10.1103/PhysRevLett.95.078302

PACS:

83.10.Tv, 61.12.Ex, 82.70.Uv

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Phys. Rev. Lett. 95, 078302 (2005) [4 pages]

Shear-Induced Collapse in a Lyotropic Lamellar Phase