Synthesis and characterization of some polyimines containing ester linkages are reported here. The electrical conductivity of these polymers is measured and the results are explained using quantum mechanical (AM1) as well as molecular mechanical (MM2) calculations. The polymers are then doped with Ag and a few mineral acids. The electrical conductivity of most of the doped polymers is found to register significant increase. Attempts are made to explain this increase in electrical conductivity.