Poly(p-phenylenevinylene) Derivatives Containing Electron-Transporting Aromatic Triazole or Oxadiazole Segments

摘要: We report the synthesis, optical and electrochemical details, properties of copolymers P1−P3 consisting alternate hole-transporting 1,4-bis(hexyloxy)-2,5-distyrylbenzene (HDB) electron-transporting 4-(4-(hexyloxy)phenyl)-3,5-diphenyl- 4H-1,2,4-triazole (EDT) or 2,5-diphenyl-1,3,4-oxadiazole (EDO) segments linked via an ether spacer a twisted σ-bond (biphenyl). These are soluble in common organic solvents such as chloroform, NMP, 1,1,2,2-tetrachloroethane exhibit good thermal stability with decomposition temperatures higher than 375 °C. show efficient energy transfer from EDT EDO to fluorophores when photoexcited. Optical also investigated detail by comparing P4 P5 containing similar chromophores. From cyclic voltammograms onset oxidation reduction potentials for isolated P1 conjugated P2 comparable, indicating that effect is ...