![](/images/graphics-bg.png)
The effect of four lateral methyl groups on the thermotropic behavior of Azo liquid crystal homologous series
Other Title(s)
تأثير أربع مجاميع مثيل في الخواص الحرارية لسلسلة ازو بلورية سائلة
Joint Authors
Abd al-Latif, Isam Abd al-Karim
Hasan, Iman Subayh
Source
Ibn al-Haitham Journal for Pure and Applied Science
Issue
Vol. 23, Issue 1 (30 Jun. 2010)12 p.
Publisher
University of Baghdad College of Education for Pure Science / Ibn al-Haitham
Publication Date
2010-06-30
Country of Publication
Iraq
No. of Pages
12
Main Subjects
Abstract EN
Twenty binary liquid crystalline mixture diagrams were investigated with polarizing microscope and differential scanning calorimeter (DSC).
Four binary mixture diagrams were constructed to identify the smectic phase which is found to be the same in all components of the homologous series (4-n-alkoxy -2, 3, 5, 6-tetra methyl-4-n-alkoxy azo benzene) (nPA4M ).
The fifth binary mixture diagram was between the (6PA4M) and the reference liquid crystal compound, terephthlylidene-bis (4-n-butylanaline) (TBAA) to identify the type of smectic mesop hase of these compounds, and the results obtained were compared with the literature.
To study the effect of the 4 methyl lateral groups on the thermotropic behavior of the (nPA4M) homologous series, fifteen binary mixture diagrams were divided in to three parts, each part contains five diagrams .
The first binary diagrams w ere (nPA4M ) with reference liqu id crystalline compound 4-n-hexyloxyphenyl-4-n`-hexyloxy azobenzene (HPA) (compound without lateral group).
The second five diagrams were between (nPA4M ) and reference liquid crystal compound 4-butylpheny-4-{[(4-ethy loxyphenyl)carbonyl]oxy}-3-methy l benzo ate (4B2M ) ( compound with one methy l lateral group), and the last part of binary diagrams was between (nPA4M ) and reference liquid crystal compound 4-butyl-2methylpheny4-{[(4- ethy loxyphenyl) carbonyl]oxy}-3-methy lbenzoate(4B2,3M ) ( compound has two methyl lat eral group s ).
American Psychological Association (APA)
Abd al-Latif, Isam Abd al-Karim& Hasan, Iman Subayh. 2010. The effect of four lateral methyl groups on the thermotropic behavior of Azo liquid crystal homologous series. Ibn al-Haitham Journal for Pure and Applied Science،Vol. 23, no. 1.
https://search.emarefa.net/detail/BIM-354208
Modern Language Association (MLA)
Abd al-Latif, Isam Abd al-Karim& Hasan, Iman Subayh. The effect of four lateral methyl groups on the thermotropic behavior of Azo liquid crystal homologous series. Ibn al-Haitham Journal for Pure and Applied Science Vol. 23, no. 1 (2010).
https://search.emarefa.net/detail/BIM-354208
American Medical Association (AMA)
Abd al-Latif, Isam Abd al-Karim& Hasan, Iman Subayh. The effect of four lateral methyl groups on the thermotropic behavior of Azo liquid crystal homologous series. Ibn al-Haitham Journal for Pure and Applied Science. 2010. Vol. 23, no. 1.
https://search.emarefa.net/detail/BIM-354208
Data Type
Journal Articles
Language
English
Notes
Includes appendices.
Record ID
BIM-354208