Publisher : The Korean Society of Dyers and Finishers
DOI : 10.5764/TCF.2016.28.2.57
Title & Authors
Synthesis and Properties of New Phthaloperinone Dyes containing Anthraquinone Moiety Jun, Kun; Gwon, Seon Yeong; Kim, Yu Jin; Kim, Sung Hoon;
We have synthesized five novel phthaloperinone dyes via a condensation reaction to be applied as yellow colorants for liquid crystal display(LCD) color filters. The reaction between 1,8-naphthalic anhydride(1a), 4-chloro-1,8-naphthalic anhydride(1b), 4-bromo-1,8-naphthalic anhydride(1c), 3-nitro-1,8-naphthalic anhydride(1d), 4-nitro-1,8-naphthalic anhydride(1e) and 1,2-diaminoanthraquinone(2) proceeded readily giving a product in 72-88% yields. The synthesized dyes were characterized by UV-Vis, mass spectrometry and elemental analysis. The spectral properties and thermal stability of the dyes were examined. The dyes absorb at around 400-450nm. All five dyes showed satisfactory thermal stability: the dyes retain 99-100% of its original weight at , 98-100% at , 92-98% at , and 84-92% at . We have quantitatively evaluated the reaction mechanism and reactivity of dye molecules by means of Pariser-Parr-Pople Molecular Orbital Method(PPP-MO).
phthaloperinone;dyes;1,8-naphthalic anhydride;1,2-diaminoanthraquinone;TGA analysis;LCD color filter;Pariser-Parr-Pople Molecular Orbital Method(PPP-MO);
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