Projects per year
We study the isotropic-nematic transition of hard cut-spheres over a wide range of aspect ratios using Monte Carlo simulation and umbrella sampling. We find a minimum in the density of both coexisting phases near to L/D=0.04 (thickness/diameter) and show that this minimum is a result of competition between the solid volume of the disks and the free volume which is significantly influenced by nematic pre-ordering in the isotropic phase. We expect similar behaviour for other kinds of discotic particles. This behaviour should be observed as a kind of 'partially re-entrant' isotropic phase for discotic mesogens within an appropriate concentration range.
|Number of pages||5|
|Journal||Chemical Physics Letters|
|Publication status||Published - 27 Aug 2009|
- isotropic-nematic transition
- hard cut-spheres
- chemical engineering
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- 1 Finished
Design of polymer-clay nano-composites via control of phase behaviour
Sweatman, M., Liggat, J., Pethrick, R. & Sefcik, J.
EPSRC (Engineering and Physical Sciences Research Council)
15/01/07 → 30/11/10