Journal article

Broad bandwidth optical and mechanical rheometry of wormlike micelle solutions

  • Willenbacher, N. Institute of Mechanical Process Engineering and Mechanics, Universität Karlsruhe, Germany
  • Oelschlaeger, C. Institute of Mechanical Process Engineering and Mechanics, Universität Karlsruhe, Germany
  • Schopferer, M. Institute of Mechanical Process Engineering and Mechanics, Universität Karlsruhe, Germany
  • Fischer, P. Institute of Food Science and Nutrition, ETH Zurich, Switzerland
  • Cardinaux, Frédéric Department of Physics, University of Fribourg, Switzerland
  • Scheffold, Frank Department of Physics, University of Fribourg, Switzerland
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    10.08.2007
Published in:
  • Physical Review Letters. - 2007, vol. 99, no. 6, p. 068302
English We characterize the linear viscoelastic shear properties of an aqueous wormlike micellar solution using diffusing wave spectroscopy (DWS) based tracer microrheology as well as various mechanical techniques such as rotational rheometry, oscillatory squeeze flow, and torsional resonance oscillation covering the frequency range from 10⁻¹ to 10⁶ rad/s. Since DWS as well as mechanical oscillatory squeeze flow and torsional resonance oscillation cover a sufficiently high frequency range, the persistence length of wormlike micelles could be determined directly from rheological measurements for the first time.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/300667
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