Journal :   Asian Journal of Research in Chemistry

Volume No. :   7

Issue No. :  12

Year :  2014

Pages :   1035-1046

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Preparation of some chemo-materials and study of characterization of physical properties



Address:   Dr. Sajida. H. Ridha, Athrra Abdl Kadhem
Chemistry Department, College Education for Girls, Kufa University, Iraq
*Corresponding Author
DOI No:

ABSTRACT:
Two series were prepared4-(alokxy)-N-(4-(heptyloxybenzylidene)aniline (7BAn) and N-(4-alokxybenzylidene)-4-(heptyloxy aniline) (nBA7) the compounds have been identified spectrally (FT-IR, HNMR), and( elemental analysis CHN) the misomorphic phases were identified by polarized light microscope and measured transition temperatures for compounds in addition to the Differential Scanning Calorimeter (DSC) and when we draw transition temperatures against the number of Carbons atoms for each series it was found the odd-even effect of crystalline phase to smectic phase then to nematic phase then to isotropic phase , and when comparing the liquid crystal behavior for two series it was found that the series (7BAn) all compound exhibit smectic phase in addition to the nematic phase except compound (n = 4) did not show smectic phase, while the series (nBA7) only two compounds show smectic phase (n = 6,7) in addition to the nematic phase. The smectic phase was identified for compound A6 by contact line technique and method of mixing using the reference material:
KEYWORDS:
Preparation of some chemo-materials and study of characterization of physical properties.
Cite:
Sajida. H. Ridha, Athrra Abdl Kadhem. Preparation of some chemo-materials and study of characterization of physical properties. Asian J. Research Chem. 7(12): December, 2014; Page 1035-1046.
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