New aroyleneimidazoles as dyes for thermoplastic polymeric materials

New perinone dyes for bulk dyeing synthetic polymers were synthesized. The synthesized dyes are characterized by high thermal stability. The possibility of dyeing Macrolon 28/08 polycarbonate with some of the synthesized dyes was investigated. It was shown that the dyes were uniformly distributed in the bulk of the polymer. It was found that incorporation of a perinone dye containing a pyridine radical in the polycarbonate during formation increases the glass transition temperature, decreases thermooxidative degradation of the polymer, and yields films with elevated physicomechanical indexes. __________ Translated from Khimicheskie Volokna, No. 3, pp. 5–8, May–June, 2006.