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Title: Shear-Induced Collapse in a Lyotropic Lamellar Phase

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [1]
  1. National Institute of Standards and Technology, Center for Neutron Research, Gaithersburg, Maryland 20899 (United States)
  2. School of Chemistry, The University of Sydney, Sydney, New South Wales 2006 (Australia)
  3. Condensed Matter Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

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.

OSTI ID:
20699311
Journal Information:
Physical Review Letters, Vol. 95, Issue 7; Other Information: DOI: 10.1103/PhysRevLett.95.078302; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
Country of Publication:
United States
Language:
English