A semi-flexible attracting-segment model of three-dimensional polymer collapse

J. Krawczyk, A.L. Owczarek and T. Prellberg

Physica A: Statistical Mechanics and its Applications, 2015, vol. 431, issue C, 74-83

Abstract: Recently it has been shown that a two-dimensional model of self-attracting polymers based on attracting segments with the addition of stiffness displays three phases: a swollen phase, a globular, liquid-like phase, and an anisotropic crystal-like phase. Here, we consider the attracting segment model in three dimensions with the addition of stiffness. While we again identify a swollen and two distinct collapsed phases, we find that both collapsed phases are anisotropic, so that there is no phase in which the polymer resembles a disordered liquid drop. Moreover all the phase transitions are first order.

Keywords: Polymer collapse; SAW; Attracting segments model; Stiff polymers; Semi-flexible polymers; Lattice polymers (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:431:y:2015:i:c:p:74-83

DOI: 10.1016/j.physa.2015.03.003

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