Entropy-driven demixing in spherocylinder binary mixtures
- Author(s)
- Hadrien Bosetti, A. Perera
- Abstract
The stability of binary fluid mixtures, with respect to a demixing transition, is examined within the framework of the geometrical approximation of the direct correlation for hard nonspherical particles. In this theory, the direct correlation function is essentially written in terms of the geometrical properties of the individual molecules, and those of the overlap region between two different molecules, taken at fixed separation and orientations. Within the present theory, the demixing spinodal line in the (ρ1,ρ2) concentration plane is obtained analytically, and shown to be a quadratic function of the total packing fraction and the compositions. The theory is applied herein to binary mixtures of hard spherocylinders in the isotropic phase.
- Organisation(s)
- Computational and Soft Matter Physics
- External organisation(s)
- Université Paris XI - Paris-Sud
- Journal
- Physical Review E
- Volume
- 63
- Pages
- 21206-21220
- No. of pages
- 15
- ISSN
- 1539-3755
- DOI
- https://doi.org/10.1103/PhysRevE.63.021206
- Publication date
- 2001
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1030 Physics, Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/725102ea-8992-43c4-bf5a-5a3a82c58d88