Effective interaction between star polymers
نویسندگان
چکیده
The distance-resolved effective interaction between two star polymers in a good solvent is calculated by Molecular Dynamics computer simulations. The results are compared with a pair potential proposed recently by Likos et al. [Phys. Rev. Lett. 1998, 80, 4450] which is exponentially decaying for large distances and crosses over, at the corona diameter of the star, to an ultrasoft logarithmic repulsion for small distances. Excellent agreement is found in a broad range of star arm numbers. PACS: 61.25.Hq, 82.70.Dd, 61.20.Ja ∗Also at: IFF, Forschungszentrum Jülich, D-52425 Jülich, Germany
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تاریخ انتشار 2008