Synthesis and characterization of various organic fluorescent and thermally stable polyesters with s-triazine frame and bulky side chain

The present study focuses on the synthesis of organic fluorescent and thermally stable polyesters using the s-triazine frame. Coumarin and benzilic acid have been utilized as bulky pendant groups. It has been established that these two groups are mainly accountable for fluorescence and enhancing the stability of polyesters. The synthesized polyesters were characterized using a plethora of techniques. The structural elucidation was carried out using infrared spectroscopy and nuclear magnetic resonance spectroscopy. The stability of the polyesters for 10% and 50% weight loss was assessed using thermogravimetric analysis. The solubility behaviour was observed for both polar and nonpolar solvents. The useful traits of these polyesters, such as fluorescence and enhanced thermal stability, make them important