Solvent compatible cobalt ion species as additives to polyimides
A series of solvent compatible cobalt compounds have been synthesized as additives to polyimides. The resultant cobalt doped polyimide films are smooth, flexible and shiny. The doped films display lowered electrical resistivities by 3 to 4 orders of magnitude compared to the undoped polyimide. Additive migration to the surface of the film generating a cobalt oxide layer has been observed.