▎ 摘　　要

Poly(benzimidazole-amide) (PBIA) nanocomposites containing 5, 10, and 15 wt.% of graphene oxide were successfully prepared. A new PBIA was prepared via polymerization of 1,3-bis(5-amino-1H-benzimidazole-2-yl)benzene, as an aromatic diamine, and 5-hydroxy isophthalic acid in the presence of molten tetra-n-butyl ammonium bromide and triphenyl phosphite as a green and environmentally friendly method. To prevent agglomeration of graphene in the PBIA matrix, graphene oxide was prepared by hummer's method. Then, different PBIA/graphene oxide nanocomposites were synthesized via interaction of pure PBIA and graphene oxide using ultrasonic technique. TEM and FE-SEM images certified that the graphene oxides were uniformly dispersed in the PBIA matrix.