The synthesis, electrochemical and fluorescent properties of monomers and polymers containing 2,5-diphenyl-1,3,4-thiadiazole

Three, 2,5-diphenyl-1,3,4-thiadiazole-containing vinyl monomers and their polymers were synthesized and the HOMO and LUMO energies of the compounds, as estimated from cyclic voltammetry data, were −6.35 to −6.14 eV and −3.02 to −2.84 eV, respectively. The optical band gaps (Eg) were similar to those determined from cyclic voltammograms. The fluorescent emission spectra of all monomers and polymers displayed either blue or green light emission.