화학공학소재연구정보센터
Macromolecules, Vol.37, No.11, 4099-4103, 2004
Novel [2.2]paracyclophane-fluorene-based conjugated copolymers: Synthesis, optical, and electrochemical properties
Novel through-space pi-conjugated polymers having [2.2]paracyclophane and fluorene units were synthesized by the Heck coupling reaction. The polymers 6a-c possess good solubility in common organic solvents and good thermal stability. All of the polymers 6a-c exhibited bright blue emission with high photoluminescence (PL) efficiencies of 67-72% in solution. The HOMO and LUMO energy levels of the polymer 6a were estimated from the cyclic voltammogram. The first organic electroluminescence (EL) material using a cyclophane-containing polymer was successfully fabricated and showed a bluish-green light at around 500 nm.