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Synthesis ,Characterization and Liquid Crystal Properties Study of NovelNematic Liquid Crystal Compound.
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| Author:
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MOHAMMED HASAN, SAWSANBUSHRA HASAN
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| Abstract:
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ABSTRACT
A series ofnovel N1-(6-((4-(alkyloxy)benzylidene)amino)pyridin-2-yl)-N4-(6-((E)-(4-(alkyloxy)benzylidene)amino)pyridin-2-yl)terephthalamidewere prepared from N1,N4-bis(6-aminopyridin-2-
yl)terephthalamideand 4-alkoxy benzaldehydesby thermal condensation reaction in absolute ethanol at reflux
condition. The structure of the target compounds were elucidated by FT-IR spectral data and determining the
elementscontent(C.H.N%) . The liquid crystal properties of these products were studied by measuring the values of
the phase transition temperatures by differential scanning calorimetry (DSC) and the texture of mesophases by using
optical polarizing microscopy (POM).The target compounds showed significant liquid crystal properties.
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| Keyword:
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Nematic Liquid Crystal,benzylidene)amino)pyridin-2-yl)-N4-(6-((E)-(4- (alkyloxy)benzylidene)amino)pyridin-2-yl)terephthalamide.
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| EOI:
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-
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| DOI:
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https://doi.org/10.31838/ijpr/2019.11.04.013
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| Download:
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