| 초록 |
Various new conjugated polymers have been designed and synthesized, for efficient light emission or charge transfer. So far, the majority of work on conjugated polymers has been focused on linear one-dimensional polymers. Although a few of two-dimensional conjugated polymers, such as hyperbranched conjugated polymer have been reported to exhibit comparable charge transferring and processing properties to their linear counterparts, two-dimensional conjugated polymeric light-emitting materials have been less discussed in the literature. Here, we report the synthesis and light-emitting properties of hyperbranched polyfluorene (PF) through A2 and B3 type monomer. A synthesized hyperbranched PF showed pure blue emission as film state at 419 nm in photoluminescence (PL) measurement and was found to showing almost no excimer emission peak even the polymer film was annealed at 80 oC for 5 hours. Detailed synthetic routes and photophysical properties of new hyperbranched PF will be discussed. |
