Synthesis of New Liquid Crystalline Diglycidyl Ethers
AbstractThe phenolic Schiff bases I–VI were synthesized by condensation reactions between various diamines, namely o-dianisidine, o-tolidine and ethylenediamine with vanillin or p-hydroxybenzaldehyde and subsequent reactions between these phenolic Schiff bases and epichlorohydrin to produce new diglycidyl ethers Ia–VIa. The structures of these compounds were confirmed by CHN, FT-IR, 1H-NMR, and 13C-NMR spectroscopy. Their thermotropic liquid crystalline behavior was studied using differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). All the diglycidyl ethers prepared exhibit nematic mesophases, except for Va and VIa, which did not show any transition mesophases, but simply flow to liquids.
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Mohammed, I.A.; Hamidi, R.M. Synthesis of New Liquid Crystalline Diglycidyl Ethers. Molecules 2012, 17, 645-656.
Mohammed IA, Hamidi RM. Synthesis of New Liquid Crystalline Diglycidyl Ethers. Molecules. 2012; 17(1):645-656.Chicago/Turabian Style
Mohammed, Issam Ahmed; Hamidi, Rashidah Mohamed. 2012. "Synthesis of New Liquid Crystalline Diglycidyl Ethers." Molecules 17, no. 1: 645-656.