The structure/property relationship in a series of pyrrolic polysquaraines.

Highlights: [•] We report the synthesis of a series of eight polymeric pyrrolic squaraines. [•] The polysquaraines are studied using IR, XRD, TGA and SEM techniques. [•] Two of the eight polysquaraines electrically conduct (∼1×10−5 S/cm). [•] The two conductive polysquaraines are suspected to be flat and closely π-stacked. [•] Comment is made their structure/property relationship. [ABSTRACT FROM AUTHOR]