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Steric interaction and phase behavior of some laterally substituted liquid crystalline compounds /

Hoda Abdelrazik Ahmed

Steric interaction and phase behavior of some laterally substituted liquid crystalline compounds / التدخلات الفراغية وسلوك الطور فى بعض المركبات البلورية السائلة ذات الاستبدال المستعرض Hoda Abdelrazik Ahmed ; Supervised Magdi M. Naoum , Sayed Z. Mohammady - Cairo : Hoda Abdelrazik Ahmed , 2009 - 116Leaves : charts ; 30cm

Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physical Chemistry

The study aimed to investigate the effect of inclusion of the lateral methy 1 group as well as its spatial orientation on the mesomorphic properties of the produced derivatives in their pure and mixed states . Molecular formulae of the compounds in both groups were confirmed via elemental analyses ir nmr, and mass spectroscopy . The compounds prepared in both groups were characteized for their mesophase behavior by differential scanning calorimetry , DSC , and phase identified by polarized light microscopy PLM . The nematic phase is the only microscopy observed in most of the compounds prepared and their binary mixtures



Alkoxy benzoates Binary phase diagrams Mesophase