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DJPS

Diyala Journal For Pure Science

Scientific Refereed Journal Published By College of Science - University of Diyala

 

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djps.1403.416A

Diyala Journal For Pure Sciences DJPS

ISRA Impact Factor:3.715

P- ISSN:2222-8373, E-ISSN:2518-9255

Volume 14, Issue 3 , July . 2018

 

 

Synthesis, Characterization and Studying Liquid Crystalline Properties  of Some Azo - Schiff base Compounds Derivatives

 

Noor Sabah Al-Obaidi

 

Year: 2018, Volume: 14, Issue: 3

 

Pages: 48 - 58, DOI: http://dx.doi.org/10.24237/djps.1403.416A 

 

Language: English

 

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Abstract


 

Four azo-Schiff base liquid crystalline compounds with different polar groups named (A1S, A2S, A3S, A4S) have been synthesized and their structures were characterized by using (FTIR) spectrometry technique the peaks in the infrared spectrum matched the literature in diagnosing the functional groups while their liquid crystalline phase transition and temperature range was confirmed by differential scanning calometery (DSC)  which indicate the presence of liquid crystalline  phases, The textures of the synthesized liquid crystalline compounds were performed using polarized optical microscope which show a nematic phases in the (A1S) and (A3S) compounds .

 

Key word: Azo, Schiff base, Liquid crystal

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