Abstract: “A novel fluorescent dye based on naphthalimide has been synthesized from 4-bromo-1,8-naphthalic anhydride. This compound was reacted with N-ethylglycinate and buthylenediamine, respectively. Purification of products was carried out through recrystalization and characterized by means of FTIR, 1HNMR and 13CNMR spectroscopic techniques. The maximum absorption wavelength, extinction coefficient and fluorescent spectra of the dye together with quantum yield have been evaluated in DMF and toluene solvents. Results showed that the synthesized dye has positive solvatochromism effect and good color strength in yellow hue. This dye was grafted to the chain of a polymer leading to colored fluorescent polymer. In this study novel polymer with naphthalimide pendant group were prepared. The ability of the dye for grafting to polymer chain was demonstrated that 95% dye incorporated in to the polymer chain.”

Keywords: Synthesis, Dye, Fluorescent, 1,8-Naphthalimide, Self-colored polymer