NONEXPONENTIAL DYNAMIC RELAXATION OF RANDOMLY BRANCHED POLYMERS IN GOOD SOLVENTS

Authors
Citation
J. Kemp et Zy. Chen, NONEXPONENTIAL DYNAMIC RELAXATION OF RANDOMLY BRANCHED POLYMERS IN GOOD SOLVENTS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 56(6), 1997, pp. 7017-7022
Citations number
23
ISSN journal
1063651X
Volume
56
Issue
6
Year of publication
1997
Pages
7017 - 7022
Database
ISI
SICI code
1063-651X(1997)56:6<7017:NDRORB>2.0.ZU;2-N
Abstract
Monte Carlo simulations were carried out to study the dynamics of rand omly branched polymers in good solvents. Two types of time scales were observed: fast relaxation times corresponding to the internal contrac tion motions and slower relaxation times corresponding to the overall rotational motions of the polymers. The former is associated with auto correlation functions that exhibit nonexponential decay behavior, a si gnature of the dynamics of random systems. The latter is associated wi th the usual exponential decay behavior, typical of linear or regularl y branched polymers.