Connectedness percolation in polydisperse rod systems: A modified Bethe lattice approach

被引:53
作者
Chatterjee, Avik P. [1 ]
机构
[1] SUNY ESF, Edwin C Jahn Lab, Dept Chem, Syracuse, NY 13210 USA
关键词
POLYMER NANOCOMPOSITES; ELECTRICAL-PROPERTIES; BEHAVIOR;
D O I
10.1063/1.3436716
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A mean-field theory is presented for the percolation behavior of systems of rodlike particles characterized by length polydispersity. An analogy to the problem of site percolation on a modified Bethe lattice is employed to estimate the percolation threshold, percolation probability, and backbone fraction as functions of the rod volume fraction and polydispersity. Model calculations reveal that the percolation probability and backbone fraction depend sensitively upon the rod length distribution, while the percolation threshold is governed primarily by the weight-averaged rod length. (C) 2010 American Institute of Physics. [doi:10.1063/1.3436716]
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页数:8
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