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A series of new kinds of diester/diurethane tethered azo disperse dyes were synthesized through the reaction between the hydroxyl group in disperse dyes, such as C. I. Disperse Red 1 (1a), C. I. Disperse Red 13 (1b), and C. I. Disperse Blue 106 (1c), and terephthaloyl chloride or p-phenylene diisocyanate. Structures of these new dyes were fully characterized with NMR, MS, and FT-IR. Visible absorption...
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