Dynamics of Diblock Copolymers in Dilute Solutions
Soft Condensed Matter
2009-10-30 v1 Materials Science
Abstract
We consider the dynamics of freely translating and rotating diblock (A-B), Gaussian copolymers, in dilute solutions. Using the multiple scattering technique, we have computed the diffusion and the friction coefficients D_AB and Zeta_AB, and the change Eta_AB in the viscosity of the solution as functions of x = N_A/N and t = l_B/l_A, where N_A, N are the number of segments of the A block and of the whole copolymer, respectively, and l_A, l_B are the Kuhn lengths of the A and B blocks. Specific regimes that maximize the efficiency of separation of copolymers with distinct "t" values, have been identified.
Keywords
Cite
@article{arxiv.cond-mat/9706163,
title = {Dynamics of Diblock Copolymers in Dilute Solutions},
author = {Radu P. Mondescu and M. Muthukumar},
journal= {arXiv preprint arXiv:cond-mat/9706163},
year = {2009}
}
Comments
20 pages Revtex, 7 eps figures, needs epsf.tex and amssymb.sty, submitted to Macromolecules