| 초록 |
The unique properties based on theπ-conjugated systems enabled these materials to be used in a wide range of applications such as electric semiconductors, photonics, nonlinear optical applications, gas or liquid separation membranes, chemical sensors, liquid crystals, photovoltaic cells, and organic light-emitting diodes (OLEDs). Transition metal-catalyzed polymerizations of 9-ethynyl-9-hydroxyfluorene were investigated. The MoCl5-based catalysts exhibited high catalytic activities, whereas the WCl6-based catalysts showed low catalytic activities. The polymer structure was characterized by such various instrumental methods as NMR, IR, and UV–visible spectroscopies to have a conjugated backbone with the fluorene and hydroxy groups. This polymer was stable to air oxidation and was soluble in such organic solvents as benzene, chlorobenzene, chloroform, DMF, and DMSO. The cyclovoltammograms of polymer exhibited the irreversible electrochemical behaviors. |
