TITLE

Fractal Brownian motion and polymers in external fields

AUTHOR(S)
Washington, Gary E.
PUB. DATE
November 1996
SOURCE
Journal of Chemical Physics;11/22/1996, Vol. 105 Issue 20, p9324
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Polymer behavior in external fields is modeled using fractal Brownian motion. The chain dimensions of polymer chains with and without excluded volume show a contour length dependence of Nv where v=h-1. Chains with excluded volume have h=3/5, chains without excluded volume, Gaussian chains have h=1/2, and for chains in the collapsed state h=1/3. This nonphysical result points to the distinction between fractals as models of the trajectory or path of a polymer that are self-similar on all length scales and real polymers that possess a lower and upper limit for self-similarity.
ACCESSION #
7639819

 

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