Synthesis and liquid crystal properties of 2,5-bis (4-Alkylphenyl) thiazolo (5,4-d) thiazoles
Joint Authors
al-Salim, Tahsin A.
al-Dujayli, Ammar Hani
Jirjis, Wisam Y.
Source
Mu'tah Journal for Research and Studies : Natural and Applied Sciences Series
Issue
Vol. 10, Issue 1 (31 Mar. 1995), pp.47-63, 17 p.
Publisher
Mutah University Deanship of Academic Research
Publication Date
1995-03-31
Country of Publication
Jordan
No. of Pages
17
Main Subjects
Abstract EN
A new homologous series of 2,5-bis(4-alkylphenyl)thiazolo[5,4-dJ thiazoles has been prepared, where alkyl groups are represented Cn H2n+|-.
The methly and ethyl compounds (11 and 12) of this series are nematic, while the higher members (n>3) are polymesomor-phic.
A plot of the solid-liquid crystal-isotropic transition temperatures against the number of carbon atoms in the alkyl group shows the usual odd-even effect.
Interphase transition between solid, mesomorphic and isotropic phases were studied by hot-stage microscopy and differential scanning calorimetry (DSC).
The effect of replacing the phenyl ring in central linkage with a hetrocyclic ring are discussed.
A preliminary determination of the type of texture by polarized microscopy is also included.
American Psychological Association (APA)
al-Dujayli, Ammar Hani& Jirjis, Wisam Y.& al-Salim, Tahsin A.. 1995. Synthesis and liquid crystal properties of 2,5-bis (4-Alkylphenyl) thiazolo (5,4-d) thiazoles. Mu'tah Journal for Research and Studies : Natural and Applied Sciences Series،Vol. 10, no. 1, pp.47-63.
https://search.emarefa.net/detail/BIM-396226
Modern Language Association (MLA)
al-Dujayli, Ammar Hani…[et al.]. Synthesis and liquid crystal properties of 2,5-bis (4-Alkylphenyl) thiazolo (5,4-d) thiazoles. Mu'tah Journal for Research and Studies : Natural and Applied Sciences Series Vol. 10, no. 1 (Mar. 1995), pp.47-63.
https://search.emarefa.net/detail/BIM-396226
American Medical Association (AMA)
al-Dujayli, Ammar Hani& Jirjis, Wisam Y.& al-Salim, Tahsin A.. Synthesis and liquid crystal properties of 2,5-bis (4-Alkylphenyl) thiazolo (5,4-d) thiazoles. Mu'tah Journal for Research and Studies : Natural and Applied Sciences Series. 1995. Vol. 10, no. 1, pp.47-63.
https://search.emarefa.net/detail/BIM-396226
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 62-63
Record ID
BIM-396226