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Equilibrium polymerization: towards a numerical description of the dynamics of wormlike micelles
Author(s) -
Rouault Yannick
Publication year - 1999
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/(sici)1521-3919(19991101)8:6<551::aid-mats551>3.0.co;2-c
Subject(s) - ansatz , micelle , polymerization , rheology , polymer , formalism (music) , diffusion , statistical physics , thermodynamics , pulmonary surfactant , chemical physics , polymer chemistry , chemistry , materials science , physics , mathematical physics , organic chemistry , aqueous solution , art , musical , visual arts
The self‐diffusion of surfactant in a system of cylindrical, polymer‐like micelles is studied for high concentrations in the framework of the equilibrium polymerization model. The different types of coarse grained dynamic equilibrium‐polymers algorithms are first briefly reviewed and commented. The results suggest that the self‐diffusion is dominated by the smallest species, in marked contrast with rheological experiments showing the behaviour of the slowest (i. e. longest) chains. The self‐diffusion coefficient D is described using Phillies' formalism. An analysis of the experimental and simulational results suggests that the dependence D ˜ ϕ –1.5 is found without the ansatz of the presence of entanglements.