| Abstract: | Novel fluorene-based poly(aromatic diacetylene)s have been synthesized by CuCl-catalyzed oxidative coupling ofaromatic diynes. New aromatic diynes 2,7-diethynyl-9,9-bis(triphenylamine)fluorene (M1) is synthesized by multistepreactions. The structures and properties of the polymers are characterized and evaluated by IR, NMR, TGA, UV,photoluminescence (PL), and cyclic voltammetry analyses. These polymers possess good thermal stability. All the polymersare completely soluble in coammon solvents such as toluene, THF, chloroform, and dichloromethane. The polymers exhibitstrong blue photoluminescence in solution and green photoluminescence in the solid state. The polymer containingtriphenylamine-substituted fluorene has lower oxidation potential (-5.45 eV) than the previous polyfluorenes (-5.80 eV). |
