Doubly folded random walks for unentangled polymers: a tree percolation model

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Doubly folded random walks for unentangled polymers: a tree percolation model

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Title: Doubly folded random walks for unentangled polymers: a tree percolation model
Author: MANNA, SS
Abstract: We study the properties of two-dimensional unentangled polymer chains in a dense environment of many other cross-linked polymer molecules incorporating the excluded volume effect. A kinetic random-walk model is introduced in which the different possible directions of a step are chosen sequentially in a clockwise direction with a pre-assigned probability. While the spanning probability and other bulk properties of this walk shows a percolation-like transition, the detailed structural properties are found to be different. A spiraling behavior is observed beyond the percolation threshold. We also study two other variants of kinetic random walks.
URI: http://dx.doi.org/10.1016/S0378-4371(97)00381-6
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6511
http://hdl.handle.net/10054/6511
Date: 1997


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