Europhys. Lett.
Volume 72, Number 1, October 2005
Page(s) 89 - 95
Section Condensed matter: structural, mechanical and thermal properties
Published online 31 August 2005
Europhys. Lett., 72 (1), pp. 89-95 (2005)
DOI: 10.1209/epl/i2005-10208-x

Model for wormlike polymers confined between hard walls

J. Z. Y. Chen1, D. E. Sullivan2 and X. Yuan1

1  Department of Physics, University of Waterloo - Waterloo, Ontario, Canada N2L 3G1
2  Department of Physics, University of Guelph - Guelph, Ontario, Canada N1G 2W1

received 13 January 2005; accepted in final form 4 August 2005
published online 31 August 2005

We analyze the structure and phase behavior of long wormlike polymers sterically confined between two parallel, structureless walls, separated by a distance W. We focus on the case where W is comparable to the persistence length $\ell_p$ of the polymers, $W\sim \ell_p \ll L$, where L is the total contour length of a polymer. We find that three distinct phases (uniaxial, biaxial and condensed) may exist, depending on the polymer density and W, for wormlike chains interacting with each other through the excluded-volume interaction.

61.41.+e - Polymers, elastomers, and plastics.
64.70.Md - Transitions in liquid crystals.
68.47.Mn - Polymer surfaces.

© EDP Sciences 2005