Synthesis of aminoanthraquinone-containing structured-painted epoxy resins

The 1-aminoanthraquinone glycidyl ester (GEAA) obtained by reaction of N-alkylation of 1-aminoanthraquinone with epichlorohydrin was used in the synthesis of a structurally colored epoxy resin by co-polycondensation with with diphenylolpropane and epichlorohydrin. Structurally colored epoxy resin is a viscous liquid with a molecular weight of 400–1000, colored orange and soluble in organic solvents. The optimal amount of GEAA (from 0.1 to 0.5% wt.) is established, which provides high color intensity (molar extinction coeffi cient 0.16–1.38·104).