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Liquid Crystals Volume 35, 2008 - Issue 10
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Original Articles

Novel chiral calamitic liquid crystalline oxadiazoles as ferroelectric materials

M. L. Parra Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad de Concepción, PO Box 160‐C, Concepción, ChileCorrespondence[email protected]
,
P. I. Hidalgo Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad de Concepción, PO Box 160‐C, Concepción, Chile
,
E. A. Soto‐Bustamante Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, PO Box 233, Santiago, Chile
,
J. Barberá Facultad de Ciencias‐Instituto de Ciencia de Materiales de Aragón, Química Orgánica, Universidad de Zaragoza‐C.S.I.C., 50009, Zaragoza, Spain
,
E. Y. Elgueta Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad de Concepción, PO Box 160‐C, Concepción, Chile
&
V. H. Trujillo‐Rojo Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, PO Box 233, Santiago, Chile
Pages 1251-1262 | Received 02 Jun 2008, Accepted 26 Sep 2008, Published online: 25 Nov 2008
 
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Abstract

Novel liquid crystalline materials based on chiral calamitic 1,2,4‐ and 1,3,4‐oxadiazole derivatives were synthesized and their thermotropic mesomorphism investigated by polarizing optical microscopy and differential scanning calorimetry. The structures of their smectic phases were investigated by X‐ray diffraction. The existence of ferroelectric properties in the smectic C phase was also studied.

Acknowledgements

We are grateful for financial support from FONDECYT 1030696 and 7060117 and “Dirección de Investigación, Universidad de Concepción”.

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