Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5855
Title: Apolar novel mesogenic symmetric dimers composed of ve-ring bent-core monomeric units
Authors: Radhika, S.
Sadashiva, B.K.
Raghunathan, V.A.
Keywords: bent-core compounds
symmetric dimers
either linkage
ester linkage
orthogonal mesophase
Issue Date: Sep-2013
Publisher: Taylor & Francis
Citation: Liquid Crystals, 2013, Vol.40, p 1209
Abstract: The synthesis and mesomorphic properties of parts of six different series of symmetric dimers composed of five-ring bent-core monomeric units have been investigated. By design, all the dimers are apolar as all the dipoles of the monomers cancel with each other. The mesomorphic properties have been investigated (1) as a function of the length of the terminal chain for a fixed spacer unit, and (2) as a function of the length of the spacer unit for a fixed terminal chain length. Interestingly, two orthogonal lamellar phases have been observed in many of these dimers which differ from one another only in the layer spacing. The chemical structure of the dimers has been determined using a combination of spectroscopic techniques and elemental analysis. The mesophases are characterised using complementary methods such as polarising optical microscopy, differential scanning calorimetry, X-ray diffraction and electro-optical measurements.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/5855
ISSN: 0267-8292
1366-5855 (Online)
Alternative Location: http://dx.doi.org/10.1080/02678292.2013.805263
Copyright: 2013 Taylor & Francis
Appears in Collections:Research Papers (SCM)

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