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Phase Transitions
A Multinational Journal
Volume 86, 2013 - Issue 5
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Original Articles

Mesomorphic properties of a bent-shaped liquid crystalline monomer

V. Novotná Institute of Physics, Academy of Science of the Czech Republic, Na Slovance 2, CZ-182 21 Prague 9, Czech RepublicCorrespondence[email protected]
,
U. Baumeister Institute of Chemistry, Physical Chemistry, Martin Luther University, Von-Danckelmann-Platz 4, D-06120 Halle, Germany
,
M. Kohout Department of Organic Chemistry, Institute of Chemical Technology, CZ-166 28 Prague 6, Czech Republic
&
J. Svoboda Department of Organic Chemistry, Institute of Chemical Technology, CZ-166 28 Prague 6, Czech Republic
Pages 503-515 | Received 28 Mar 2012, Accepted 30 May 2012, Published online: 06 Jul 2012
 
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Abstract

We have prepared a new bent-shaped monomer designed for main chain liquid crystalline polymers. The mesomorphic behaviour of the monomer was fully characterized by DSC, polarizing optical microscopy and electro-optical measurements. Based on X-ray analysis of the monomer, its structural properties were established and a possible molecular arrangement in the mesophases is proposed. A direct comparison of the material shows that an introduction of an isolated double bond can slightly modify the mesomorphic properties of the liquid crystalline monomer in comparison with the alkyl-chain analogous bent-shaped compound studied previously.

Acknowledgments

This work was supported by grant P204/11/0723 (Czech Science Foundation).

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