A Novel Perylene Polymer Based on the 1,3,5-Triazines

Perylene chromophore containing supramolecular chromogenic polymers represent an important research topic relating to its interesting optoelectronic and redox properties. In the present study, a novel chromogenic polymer (TAPPI) was synthesized by polycondensation of perylene-3,4,9,10-tetracarboxylic dianhydride (PDA) with hindered aromatic diamine, 2,4-diamino-6-phenyl-1,3,5-triazine in isoquinoline and m-cresol solvents mixture under argon atmosphere. The synthesized product purity was confirmed using elemental analysis, IR and UV-vis spectroscopy. The product TAPDI is soluble mainly in polar solvents such as pyridine, NMP, DMF, DMSO, m-cresol in purple and TFAc pink colours. It is important to note that, different absorption and emission properties have been observed due to different intermolecular interactions in various solvents. The lower fluorescence quantum yield of the TAPPI in NMP, DMF and DMSO solvents (70%, 60% and 30%) could be attributed to conformational changes, torsional movement, or other non-radiative decays. Overall, the new polymer TAPPI has shown great potential for further photonic technology. Keywords: Perylene polymers, hindered diamine, photonics, solar cells.