This title appears in the Scientific Report :
2001
Please use the identifier:
http://dx.doi.org/10.1063/1.1372510 in citations.
Please use the identifier: http://hdl.handle.net/2128/1605 in citations.
Shear-induced displacement of isotropic-nematic spinodals
Shear-induced displacement of isotropic-nematic spinodals
The shear dependent location of the isotropic-nematic spinodals in suspensions of bacteriophage fd is studied by means of time resolved birefringence experiments. The hysteresis in the birefringence on increasing and subsequently decreasing the shear-rate allows the determination of the location of...
Saved in:
Personal Name(s): | Lenstra, T. |
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Dogic, Z. / Dhont, J. K. G. | |
Contributing Institute: |
Weiche Materie; IFF-WM |
Published in: | The @journal of chemical physics, 114 (2001) S. 10151 |
Imprint: |
Melville, NY
American Institute of Physics
2001
|
Physical Description: |
10151 |
DOI: |
10.1063/1.1372510 |
Document Type: |
Journal Article |
Research Program: |
Polymere, Membranen und komplexe Flüssigkeiten |
Series Title: |
Journal of Chemical Physics
114 |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/1605 in citations.
The shear dependent location of the isotropic-nematic spinodals in suspensions of bacteriophage fd is studied by means of time resolved birefringence experiments. The hysteresis in the birefringence on increasing and subsequently decreasing the shear-rate allows the determination of the location of points in the shear-rate vs concentration phase diagram between the isotropic-to-nematic and the nematic-to-isotropic spinodals. Experimental hysteresis curves are interpreted on the basis of an equation of motion for the orientational order parameter tensor, as derived from the N-particle Smoluchowski equation. The spinodals are found to shift to lower concentrations on increasing the shear-rate. Above a critical shear-rate, where shear forces dominate over thermodynamic forces, no spinodal instability could be detected. (C) 2001 American Institute of Physics. |