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The European Physical Journal B
ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)
Abstract Volume 2 Issue 4 (1998) pp 483-487
Living polymers in random media: a 2D Monte-Carlo investigation on a square lattice
Y. Rouault (a)
Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz, Germany
Received: 1 September 1997 / Received in final form: 22 January 1998 / Accepted: 30 January 1998
Abstract: The evolution of the mean chain length ${\langle L\rangle}$ and mean end to end square radius ${\langle R^2_e \rangle}$ of a two dimensional system of living polymers at constant monomer concentration is studied as a function of the obstacle density $\rho$. The fact that the system adapts the mean chain length ${\langle L\rangle}$ in order to reduce the entropic constraint does not lead to a different asymptotic dependence of ${\langle R^2_e \rangle}$ on $\rho$ than what is observed for dead polymers. The change of the molecular weight distribution form in the presence of obstacles suggests that a Levy flight could appear in system of wormlike micelles in a porous medium.
PACS. 36.20-r Macromolecules and polymer molecules - 82.35+t Polymers reactions and polymerization - 61.43.Bn Structural modeling: serial-addition models, computer simulation
(a) email: rouault@mpip-mainz.mpg.de
Online publication: June 2, 1998
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