Chemiluminescence properties of polymeric fluorophores containing distyrylarylene unit

Conjugated-non-conjugated alternating block copolymers containing distyryla rylene units were synthesized via Wittig reaction for chemiluminescent fluo rophores. The polymers were differentiated from others by the presence of a romatic unit in the chromophoric block. When UV-VIS, photoluminescence and chemiluminescence spectra of these materials were compared with copolymers, a strong bathochromic effect was observed. A more pronounced red shift and higher chemiluminscence efficiency were observed in the polymer with anthr acene ring. Sodium salicylate-catalyzed reaction of bis(2-carbopentyloxy-3, 5,6-trichlorophenyl) oxalate with hydrogen peroxide produced a strong chemi luminescence from blue to yellow-green light emission with wavelength of 45 0-537 nm in the presence of the fluorophore. The chemiluminescent intensity decayed exponentially. The glow of chemiluniinescence maintained more than 12 hr and was visible with the naked eye.