Synthesis of heterocyclic aramid nanofibers and high performance nanopaper

Abstract

The construction of heterocyclic aramid nanofibers (HNFs) was reported for the first time in this study by a polymerization-induced self-assembly method. 2-(4-Aminophenyl)-5-aminobenzimidazole was introduced as the third monomer to participate in the polymerization of poly(p-phenylene terephthalamide) and HNFs were successfully prepared based on the balance of the solvent isolation effect and intermolecular interaction. Subsequently, HNFs were fabricated into nanopaper, which has uniform micro–nano structures and significantly improved mechanical properties and electrical insulation.