Calamitic bisazobenzene liquid crystal series: synthesis and mesomorphic properties of 1-methoxyalkyloxy-4 '-(4-phenylazo)azobenzene

A. A. Salisu, and M. Z. Ab. Rahman, and S. Silong, and Md Lutfor Rahman, and M. Ahmad, (2011) Calamitic bisazobenzene liquid crystal series: synthesis and mesomorphic properties of 1-methoxyalkyloxy-4 '-(4-phenylazo)azobenzene. Liquid Crystals, 38 (4). pp. 423-431. ISSN 0267-8292

[img]
Preview
PDF
42Kb

Official URL: http://dx.doi.org/10.1080/02678292.2010.550141

Abstract

A new series of calamitic liquid crystal materials with bisazobenzene moieties as a core has been synthesised and characterised by spectroscopic methods. The mesomorphic properties were investigated by differential scanning calorimetry, optical polarising microscopy and X-ray diffraction. The presence of nematic and smectic A mesophases was confirmed by the textures and X-ray diffraction studies. All the compounds are found to show enantiotropic mesophase behaviour. The compounds show a significant photoisomerisation under appropriate light irradiation.

Item Type:Article
Uncontrolled Keywords:Liquid crystal, Bisazobenzene, Nematic phase, Smectic phase, calamitic, Thermotropic
Subjects:?? QD241-441 ??
Divisions:SCHOOL > School of Science and Technology
ID Code:1431
Deposited By:IR Admin
Deposited On:10 Aug 2011 14:49
Last Modified:16 Feb 2015 16:24

Repository Staff Only: item control page


Browse Repository
Collection
   Articles
   Book
   Speeches
   Thesis
   UMS News
Search
Quick Search

   Latest Repository

Link to other Malaysia University Institutional Repository

Malaysia University Institutional Repository