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-body interactions in soft-sphere coarse-grained models of star polymers
Phys. Rev. E 85, 021803 – Published 13 February, 2012
DOI: https://doi.org/10.1103/PhysRevE.85.021803
Abstract
We consider the coarse-grained approach in which star polymers are mapped onto atoms located at the centers of the stars interacting by means of ultrasoft potentials. We generalize the Witten-Pincus formula to all -body potentials: in the good-solvent regime all potentials show an ultrasoft logarithmic divergence when the relative distance of all stars goes to zero, with coefficients that can be related to the partition-function exponents .
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References (18)
- P. G. de Gennes, Scaling Concepts in Polymer Physics (Cornell University Press, Ithaca, 1979).
- M. Doi, Introduction to Polymer Physics (Clarendon, Oxford, 1992).
- C. N. Likos, Phys. Rep. 348, 267 (2001).
- B. Lonetti, M. Camargo, J. Stellbrink, C. N. Likos, E. Zaccarelli, L. Willner, P. Lindner, and D. Richter, Phys. Rev. Lett. 106, 228301 (2011).
- M. Camargo and C. N. Likos, Phys. Rev. Lett. 104, 078301 (2010).
- C. Mayer and C. N. Likos, Macromolecules 40, 1196 (2007).
- P. G. Bolhuis, A. A. Louis, and J. P. Hansen, Phys. Rev. E 64, 021801 (2001).
- C. von Ferber, A. Jusufi, C. N. Likos, H. Löwen, and M. Watzlawek, Eur. Phys. J. E 2, 311 (2000).
- T. A. Witten and P. A. Pincus, Macromolecules 19, 2509 (1986).
- H.-P. Hsu, W. Nadler, and P. Grassberger, Macromolecules 37, 4658 (2004).
- N. Clisby, Phys. Rev. Lett. 104, 055702 (2010).
- J. M. Hammersley and S. G. Whittington, J. Phys. A 18, 101 (1985).
- M.-N. Chee and S. G. Whittington, J. Phys. A 20, 491 (1987).
- T. C. Yu, D. S. Gaunt, and S. G. Whittington, J. Phys. A 30, 4607 (1997).
- D. S. Gaunt and T. C. Yu, J. Phys. A 33, 1333 (2000).
- C. von Ferber, A. Jusufi, M. Watzlawek, C. N. Likos, and H. Löwen, Phys. Rev. E 62, 6949 (2000).
- M. Daoud and J. P. Cotton, J. Phys. (Paris) 43, 531 (1982).
- H.-P. Hsu and P. Grassberger, Europhys. Lett. 66, 874 (2004).