Symmetrical azine-based polymers possessing 1-phenyl-1,2,3,4-tetrahydroquinoline moieties as materials for optoelectronics

Glycidyl-terminated 3-hydroxy-1-phenyl-1,2,3,4-tetrahydroquinoline-6-carbaldehyde azine and its 4,4′-thiobisbenzenethiol, 2,5-dimercapto-1,3,4-thiadiazole, and 1,3-benzenedithiol copolymers were synthesized by multi-step synthetic route. The materials were examined by various techniques including differential scanning calorimetry, UV and fluorescence spectrometry as well as xerographic time of flight technique. The ionization potentials of these materials are in the range of 5.40-5.61 eV as determined by the electron photoemission method. The hole mobility, reaching 10−6 cm2/V s at the 106 V/cm electric field, was observed in the polymer obtained in the polyaddition reaction of the above mentioned monomer with 4,4′-thiobisbenzenethiol.