Archive \ Volume.7 2018 Issue 3

Synthesis and Characterization and Studying Liquid Crystal Properties of Some Schiff Base Compounds Substituted with Aliphatic Long Chain

Noor Sabah Al-Obaidi , Ahmed N. Abd , Omaima Emad
Abstract

This research included the synthesis of some schiff bases including S1-S5, and S6-S8 with liquid crystal properties. The prepared compounds were diagnosed by spectroscopy methods including FTIR and 1H-NMR. The results of FTIR, they were similar to the literature. The liquid crystalline state of the synthesized compounds (S5, S7, and S8) was obtained in nematic phase, and the changes were observed at different temperatures, It was confirmed that there were transitions in phases by using Differential Scanning Calorimeter (DSC). The purity of the synthesized compounds was checked by thin layer chromatography (TLC), and the melting point of the purified schiff base was also measured.


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