초록 |
ABSTRACT: The objective of this study is a synthesis of blue light material which has thermal stability, long life and excellent luminous efficiency. we synthesized a monomer type of Phenylethylene containing carbazole. and synthesized co-monomer containing octyl group to improve solubility. we conducted suzuki coupling polymerization with different concentrations. polymers are compared with polymerization properties, thermal stability and optical properties used GPC, UV-vis, PL spectrophotometer. polymers have 1543~3016 of molecular weight and 1.04~1.30 of PDI value. UV-vis absorption wavelengths showed 301nm~303nm and PL maximum emission wavelengths showed 480nm~489nm. relative quantum yield used 9,10-diphenylanthracene showed the maximum 25.8%. |