Field-induced alignment of flexible polyelectrolytes in solution.
作者： Tak Shing Lo , Boris Khusid , Joel Koplik
DOI: 10.1103/PHYSREVLETT.104.218303
关键词:
摘要: Molecular dynamics simulations are used to study dynamical coupling between conformational fluctuations of a highly charged flexible macromolecule and its surrounding ionic cloud. We find that the basic model polyelectrolyte as chain monomers captures main experimental findings on field-induced alignment polyelectrolytes despite simplicity. Contrary current theories, correlated local charge field in vicinity found dominate along an external field. suggest short-lived monomer-counterion clustering can be probed by measuring anisotropy x-ray neutron scattering from polymer solutions.
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