Polymers containing backbone fluorescein, phenolphthalein and benzaurin. Synthesis and optical properties

In order to utilize the prominent fluorescence ability of fluorescein in li ght emitting devices, we have synthesized a series of polymers that contain fluorescein in their backbones. The key step of the synthesis, in which th e fluorescein unit and the polymer are created simultaneously, is the react ion of bis(2,4-dihydroxyphenyl)alkanes with phthalic anhydride. This new me thodology was also used for the synthesis of polymers containing phenolphth alein and benzaurin. All the new polymers completely maintained the optical and chemical characteristics of the parent pigment.