Polyacrylonitrile-derived polyconjugated ladder structures for high performance all-organic dielectric materials.

A novel all-organic polyconjugated ladder structures-polyimide (PcLS-PI) composite was successfully synthesized, in which PcLS were derived from polyacrylonitrile (PAN). The PcLS-PI composite not only presents high dielectric performances of high dielectric permittivity, low dielectric loss, high electrical breakdown strength and high energy density, but also has excellent mechanical and thermal properties.