Dynamics of Diblock Copolymers in Dilute Solutions

Details Dynamics of Diblock Copolymers in Dilute Solutions Dynamics of Diblock Copolymers in Dilute Solutions

1997-06-16

arxiv.org/abs/cond-mat/9706163v1

Macromolecules 30 (20), 6358, 1997.

Physics

Condensed Matter

Soft Condensed Matter

20 pages Revtex, 7 eps figures, needs epsf.tex and amssymb.sty, submitted to Macromolecules

Scientific paper

10.1021/ma970339e

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.

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