2004/06/15 by P. K. Mishra, Sanjay Kumar
Physics and Astronomy · #cond-mat.stat-mech
paper · pdf · doi:10.1063/1.1796233
published as J. Chem. Phys. Vol. 121 (17) (2004) 8642. · 11 pages with 7 eps figures
arxiv created 2004/06/15 · arxiv updated 2009/12/01
The equilibrium thermodynamic properties of a linear polymer chain confined to a space between two impenetrable walls (lines) at a distance D under various solvent conditions have been studied using series analysis and exact enumeration technique. We have calculated the end to end distance of polymer chain, which shows a non-monotonic behaviour with inter wall M separation D. The density distribution profile shows a maxima at a particular value of (D=)D^*. Around this D^*, our results show that the collapseM transition occurs at higher temperature as compared to its bulk value of 2d and 3d. The variation of θ- temperature with D shows a re-entrance behaviour. We also calculate the force of compression exerted by the walls (lines) on the polymer.