Synthesis and Characterization of Tetra(azo)2,3-Dihydroperimidine Dyes for Guest-Host Liquid Crystals
The synthesis and characterization of several tetra(azo)-2,3-dihydroperimidine dyes with alkyl substituents in the 1,2, and 3 positions are described.The dyes have intense blue colors, high order parameters and high solubilities in liquid crystal host solvents.Order parameters are enhanced with longer alkyl substituents at the 2-position.Two of the dyes exhibit thermal transitions consistent with formation of liquid crystal phases.
Shannon, P. J.,Sun, S. T.
p. 43 - 50
(2007/10/02)
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