Abstract

Mebrouk Djedid¹, Mokhtar Benalia¹, Fouad Ferkous², Asma Boudaoud ¹, and Ammar Hani Al-Dujaili³

DOI : http://dx.doi.org/10.13005/ojc/310214

Most of the synthesized compounds which have liquid crystalline character in their composition comprise aromatic molecules. Furthermore there are few jobs that replace this type of molecules by inhomogeneous molecules that have LC character. We will replace the aromatic rings by units of 1,3,4-oxadiazole and study the effects of these new components of the transition temperatures and the Thermodynamic characteristics of n- alkanes in these two LC's phases. have been investigated by inverse gas chromatography. The transition temperatures obtained by GC are in good agreement with those found by DSC. The results are interpreted in terms of parameters “b” and related thermodynamic quantities.

Mesogenic compounds; Azo groups; n-Alkanes; Thermodynamic parameters; Liquid crystals; Inverse gas chromatography

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