Synthesis and characterization of soluble fluorescent poly(aryl ether ketone)s

The soluble fluorescent poly(aryl ether ketone) polymers were synthesized by nucleophilic substitution reaction of diphenol and aromatic benzene substituted by active fluorine, These polymers have glassy transition temperature of 210 similar to 230 degrees C, The polymers in solid state and their solutions are all of fluorescence with the color of green and their maximum excitation and emission wavelengths are 420 nm and 487 nm respectively, The fluorescent strengths of the polymer solution damp with time delayance, but restitute when heated to 220 degrees C for several minutes.