Freezing and Collapse of Flexible Polymers on Regular Lattices in Three Dimensions

Details Freezing and Collapse of Flexible Polymers on Regular Lattices in Three Dimensions Freezing and Collapse of Flexible Polymers on Regular Lattices in Three Dimensions

2007-10-25

arxiv.org/abs/0710.4960v1

Phys. Rev. E 76, 061803(1-11) (2007).

Physics

Condensed Matter

Soft Condensed Matter

26 pages, 9 figures

Scientific paper

10.1103/PhysRevE.76.061803

We analyze the crystallization and collapse transition of a simple model for flexible polymer chains on simple cubic and face-centered cubic lattices by means of sophisticated chain-growth methods. In contrast to bond-fluctuation polymer models in certain parameter ranges, where these two conformational transitions were found to merge in the thermodynamic limit, we conclude from our results that the two transitions remain well-separated in the limit of infinite chain lengths. The reason for this qualitatively distinct behavior is presumably due to the ultrashort attractive interaction range in the lattice models considered here.

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