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The behavior of the structure function at large wavevectors for polymers in different regimes
Author(s) -
Bishop Marvin,
Clarke Julian H. R.,
Freire Juan J.
Publication year - 2000
Publication title -
macromolecular theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 56
eISSN - 1521-3919
pISSN - 1022-1344
DOI - 10.1002/1521-3919(20001101)9:8<550::aid-mats550>3.0.co;2-i
Subject(s) - monte carlo method , statistical physics , scaling , excluded volume , lattice (music) , renormalization group , distribution function , physics , function (biology) , dynamic monte carlo method , polymer , mathematics , thermodynamics , quantum mechanics , statistics , geometry , nuclear magnetic resonance , evolutionary biology , biology , acoustics
Off‐lattice Monte Carlo simulations employing the pivot algorithm are used to generate ideal and excluded volume linear polymers in three dimensions. The structure function at large wavevectors is calculated from the resulting configurations. This is compared to the exact equation for ideal chains and to experimental data and both scaling and renormalization group predictions for excluded volume chains. It is found that using the des Cloizeaux form for the distance distribution function in an analytic calculation of the structure function leads to close agreement with the experimental and Monte Carlo data.