Abstract A series of functional polyacetylenes (PAs) bearing diphenyl oxadiazole pendant groups (P1–P4) were prepared, and the resultant polymers are completely soluble in common organic solvents. Their structures and properties were characterized and evaluated by DSC, TGA, UV, PL, CV, and EL analyses. The results show that all the resulting polymers possesses low LUMO energy level and high thermal stability, and the resultant functional ...