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Synthesis and Properties of Highly Phenyl-Substituted Fluorene Copolymers Containing Hole and Electron Transporting Moieties Via Diels-Alder Polymerization

Highly phenyl-substituted fluorene copolymers with hole and electron transporting moieties in the main chain were synthesized by using Diels-Alder polymerization. These polymers show good solubility in common organic solvents, high thermal stability, and strong blue photoluminescence in solid films. Cyclic voltammetry studies revealed that these polymers possess low-lying HOMO energy levels ranging from − 5.99 to − 6.00eV.