A BLUE-LIGHT-EMITTING COPOLYMER WITH CHARGE TRANSPORTING AND PHOTO-CROSS-LINKABLE FUNCTIONAL UNITS

The synthesis of a new poly(methacrylate) copolymer bearing an efficie nt blue light emitting chromophore, a charge transporting aromatic oxa diazole and a UV-sensitive crosslinkable unit is reported. The statist ical copolymer was synthesized via a multi-step route and has been cha racterised by NMR, FT-IR, and DSC. The copolymer has excellent solutio n processibility and exhibits strong luminescence. Upon cross-linking via UV-treatment, the copolymer becomes insoluble, while gaining both mechanical strength and thermal stability without loss of luminescence . The structure and properties of this novel copolymer and its applica tion in light emitting devices are discussed.