Universiti Teknologi Malaysia Institutional Repository

Synthesis and mesomorphic properties of schiff base esters possessing terminal chloro substituent

Siew Ling, Lee and S. T., Ha and L. K., Ong and H. C., Lin and Y. F., Win and S. T., Ong (2010) Synthesis and mesomorphic properties of schiff base esters possessing terminal chloro substituent. Chinese Chemical Letters, 21 (6). 637 - 640. ISSN 1001-8417

[img] PDF
115Kb

Official URL: http://dx.doi.org/10.1016/j.cclet.2010.01.023

Abstract

A homologous series of Schiffbaseesters, 4-chlorobenzylidene-4'-n-alkanoyloxyanilines, containing even number of carbons at the end groups of the molecules (Cn-1H2n-1COO–, n = 4, 6, 8, 10, 12, 14, 16) were synthesized. The mesomorphicproperties were investigated by differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). It was found that the end groups of the molecules had an effect on the mesomorphicproperties. n-Butanoyloxy was found non-mesogenic, whilst n-hexanoyloxy exhibited monotropic smectic phase. The higher members in this homologous series were enantiotropic smectogens.

Item Type:Article
Uncontrolled Keywords:schiffbaseesters, smectic A, smectic B, liquid crystal
Subjects:Q Science
Divisions:Science
ID Code:26651
Deposited By: Liza Porijo
Deposited On:18 Jul 2012 03:47
Last Modified:06 Aug 2012 07:32

Repository Staff Only: item control page