Influence of the morphology of polyaniline on the microwave absorption properties of epoxy polyaniline composites

This study reports on the electrical conductivity and dielectric properties of conductive epoxy composites containing polyaniline (PANI) with various morphologies. Globular, fibrillar, and flake-like PANIs, with more or less high aspect ratios (ratio of length to diameter or thickness), were synthesized and dispersed into an epoxy resin. It was found that increasing the aspect ratio of PANI reduces the electrical percolation threshold of the...