Phys. Rev. E 79, 031912 (2009) [9 pages]Pulling self-interacting polymers in two dimensionsReceived 8 December 2008; published 23 March 2009 We investigate a two-dimensional problem of an isolated self-interacting end-grafted polymer, pulled by one end. In the thermodynamic limit, we find that the model has only two different phases, namely a collapsed phase and a stretched phase. We show that the phase diagram obtained by Kumar et al. Phys. Rev. Lett. 98 128101 (2007) for small systems, where differences between various statistical ensembles play an important role, differs from the phase diagram obtained here in the thermodynamic limit. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.79.031912
DOI:
10.1103/PhysRevE.79.031912
PACS:
87.15.A−, 64.90.+b, 36.20.−r, 82.35.Jk
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