Synthesis and spectral properties of new N-substituted naphthalimide luminophores for structural coloration of polymethylmethacrylate and polystyrene

✍ Scribed by Tz. Filipova; I. Grabchev; I. Petkov

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 205 KB
• Volume: 35
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(19970430)35:6<1069::aid-pola10>3.0.co;2-4

✦ Synopsis

Two new unsaturated acryloxide derivatives of 4-amino-substituted-1,8naphthalimide luminophores were synthesized. Their absorption and fluorescent properties were determined in both CHCl 3 and C 2 H 5 OH. The luminophores display a broad absorption band in the visible spectral region (halfband-width up to 4433 cm 01 ) and a fluorescence in the yellow-green region (526-530 nm). The compounds are yellow colored, with a high brightness (from 2.92 up to 6.75) and a purity of color. The possibility of including naphthalimide luminophores in copolymerization process with ST and MMA resulting in the formation of colored polymers was investigated. It was found that no changes in the chemical structure of the chromophore group occurred during copolymerization. More than 92% of the initial luminophores were bound to the polymer chain. The influence of the luminophores on the kinetics of polymerization was studied, and the average viscosimetric molecular weight, M V v , of the obtained colored polymers estimated.