The dielectric spectrum of polyelectrolyte solutions
Journal
Journal of Physics Condensed Matter
Journal Volume
17
Journal Issue
31
Date Issued
2005
Author(s)
Lu, C.-Y.D.
Abstract
We have extended the double layer polarization theory of colloid particles to polyelectrolyte solutions. The dielectric function consists of two parts, one from the dipole around the polyelectrolyte, and the other from the polarization charges at the boundary of the sample. The former has already been calculated by theories in the literature, whereas the latter is evaluated here for the case of rigid rods. The low frequency dispersion is mainly from the second part, where a closed formula is obtained. Similarly to the charged sphere system, the dispersion is non-Debye-like and the low frequency loss angle is π/4.
Type
journal article