SYNTHESIS AND APPLICATION OF BIS-NAPHTHALIMIDE DYE CONTAINING UV ABSORBER AND POLYMERIZABLE GROUPS

New bis-naphthalimide dye (BND), containing an UV absorber and two unsaturated allylic groups in its molecule has been synthesized. It was evaluated for applicability on polyamide fibres and sample with intensive yellow-orange colour and yellow fluorescence has been obtained. The degree of exhaustion and fixation were assessed. The colour characteristics and optical properties from the CIE Lab colour space have been examined of the textile sample. The photostability of the dye in solution, as well as of dyed textile material was determined. The possibility for copolymerization of the dye with methyl methacrylate has been investigated and a polymethyl methacrylate with intensive colour and fluorescence has been obtained. It was spectrophotometrically estimated that 82 % of the initial amount of the compound was chemically bonded in the copolymer. Results obtained lead to the conclusion that the synthesized dye have good photostability and can be applied both as fluorescent dye for dyeing of polyamide fibres and as colour fluorescent monomer for obtaining of coloured polymethyl methacrylate.