Molecular Crystals and Liquid Crystals, Vol.551, 116-122, 2011
Synthesis and Physical Property Measurement of New Red Pigment based on Anthraquinone Derivatives for Color Filter Pigments
In this study, two red compounds for CF pigment bearing piperidine or morpholine group at 1,5-postion of anthraquinone were newly synthesized. It was observed that maximum values of UV-visible absorption of 1,5-DMAQ and 1,5-DPAQ were 488 and 498 nm, respectively, where 1,5-DMAQ has shown higher blue-shifted value than 1,5-DPAQ. These compounds show high molar extinction coefficient values of 10(3) L/mol.cm and can be processed in spin-coating method. The synthesized materials are expected to be candidates for CF pigments in solution process. In temperature study, 1,5-DPAQ and 1,5-DMAQ were decomposed at 184 degrees C and 225 degrees C.
Keywords:Anthraquinone;1,5-position;pigment;color filter;molar extinction coefficiency;solution process