초록 |
During the past decade, a number of polymeric semiconducting materials including PPVs, polythiophenes, and polyfluorenes suitable for light-emitting diodes(LEDs) have been developed. A few polymers, however, have been recently proved to be suitable for fabricating mono-, multi-, or full-color prototypes of LEDs which emitt green, orange, yellow, red, and blue. Various polymerization methods for the light-emitting polymers are now employed; for example, precursor methods, dehydrohalogenation route(Gilch polymerization), Wittig reaction, transition metal catalized polymerization methods( e.g; Heck, Yamamoto, and Suzuki coupling reactions), metathesis polymerization, etc. Among them, Gilch and Suzuki polymerizations are well known methods to give more efficient polymers for LEDs. In this meeting, I will not only decribe above mentioned methods but also introduce and discuss a novel tool, Diels-Alder polymerization for soluble, thermal stable, and highly luminescent polymers. |