Preparation and mesomorphic properties of highly fluorinated materials incorporating S-ethyl-lactate

Article abstract of DOI:10.1080/10587250108025285

The synthesis of three different chiral short molecular weight compounds have been reported. The overall compounds incorporate a linear perfluorinated tail and S-ethyl-Iactate as chiral moiety. Each compound differ to the other by one molecular parameter: a spacer carbonyloxy or oxycarbonylmethoxy or by the presence or not of an ester function between the two aromatic rings of the mesogenic core. The synthesis have been carried out from 2-F-hexylethyliodide or 2-F-hexylethanol. The mesomorphic properties have been characterized by light microscopy and by differential thermal analysis showing the peculiar effect of the spacer. The two biphenyl derivatives exhibit liquid crystal properties over a wide temperature range. The mesophase for both compounds is smectic of type A. However, the introduction of an ester function in the core contribute to enhance the melting temperature and suppress the liquid crystal behavior.

Full text of DOI:10.1080/10587250108025285

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Molecular Crystals and
Liquid Crystals Science
and Technology. Section A.
Molecular Crystals and Liquid
Crystals
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Preparation and Mesomorphic
Properties of Highly
Fluorinated Materials
Incorporating S-Ethyl-Lactate
Elisabeth Taffin De Givenchy a , Frederic Guittard a
& Serge Geribaldi a
a Laboratoire de Chimie des Matériaux Organiques
et Métalliques , Université de Nice , Pare Valrose,
F-06108, Nice cedex 2, France
Published online: 27 Oct 2006.
To cite this article: Elisabeth Taffin De Givenchy , Frederic Guittard & Serge Geribaldi
(2001) Preparation and Mesomorphic Properties of Highly Fluorinated Materials
Incorporating S-Ethyl-Lactate, Molecular Crystals and Liquid Crystals Science and
Technology. Section A. Molecular Crystals and Liquid Crystals, 365:1, 91-98, DOI:
10.1080/10587250108025285
To link to this article: http://dx.doi.org/10.1080/10587250108025285
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