  The role of starburst winds versus active galactic nuclei (AGN) jets/winds in
the formation of the kiloparsec scale radio emission seen in Seyferts is not
yet well understood. In order to be able to disentangle the role of various
components, we have observed a sample of Seyfert galaxies exhibiting kpc-scale
radio emission suggesting outflows, along with a comparison sample of starburst
galaxies, with the EVLA B-array in polarimetric mode at 1.4 GHz and 5~GHz.
Polarization is clearly detected in three Seyfert galaxies and one starburst
galaxy. The Seyfert galaxy NGC\,2639, shows highly polarized secondary radio
lobes, not observed before, which are aligned perpendicular to the known pair
of radio lobes. The additional pair of lobes represent an older epoch of
emission. A multi-epoch multi-frequency study of the starburst-Seyfert
composite galaxy NGC\,3079, reveals that the jet together with the starburst
superwind and the galactic magnetic fields might be responsible for the
well-known 8-shaped radio lobes observed in this galaxy. We find that many of
the Seyfert galaxies in our sample show bubble-shaped lobes, which are absent
in the starburst galaxies that do not host an AGN.
