| Issue |
EPL
Volume 82, Number 4, May 2008
|
|
|---|---|---|
| Article Number | 46003 | |
| Number of page(s) | 4 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/82/46003 | |
| Published online | 13 May 2008 | |
The confinement free energies of non-ideal branched polymers and ideal unbranched polymers are the same
Department of Physics and Astronomy, University of California, Los Angeles Los Angeles, CA 90095-1547, USA
Corresponding author: bruinsma@physics.ucla.edu
Received:
23
December
2007
Accepted:
26
March
2008
We use the method of dimensional reduction to show that a branching polymer with excluded-volume interaction confined between two flat plates has, in the thermodynamic limit, a confinement free energy and density profile that is the same as that of an ideal linear polymer with the same number of monomers and the same monomer-plate interaction potential. Condensation due to branching is exactly compensated by swelling due to excluded-volume interaction.
PACS: 61.25.H- – Macromolecular and polymers solutions; polymer melts / 82.39.Pj – Nucleic acids, DNA and RNA bases
© EPLA, 2008
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