Synthesis and mesomorphic properties of liquid crystals containing a perfluorinated segment via different linkers
| Autor: | Samir Y. Marzouk, Jamel Eddine Khiari, Ali Khalfallah, Stéphane Méry, Benoît Heinrich, Abdelkader Kriaa |
|---|---|
| Přispěvatelé: | Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Laboratoire du génie mécanique, École Nationale d’Ingénieurs de Monastir (ENIM) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Biphenyl
Chemistry Mesogen Organic Chemistry Intercalation (chemistry) Mesophase 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry 0104 chemical sciences Inorganic Chemistry Crystallography chemistry.chemical_compound Liquid crystal Monolayer Dehydrohalogenation Environmental Chemistry Organic chemistry [CHIM]Chemical Sciences Physical and Theoretical Chemistry 0210 nano-technology Linker |
| Zdroj: | Journal of Fluorine Chemistry Journal of Fluorine Chemistry, Elsevier, 2017, 197, pp.15-23. ⟨10.1016/j.jfluchem.2017.02.006⟩ |
| ISSN: | 0022-1139 |
| DOI: | 10.1016/j.jfluchem.2017.02.006⟩ |
| Popis: | This study presents the synthesis and mesomorphic properties of a series of biphenyl benzoate liquid crystals carrying a perfluorinated segment, via three uncommon flexible linkers. In particular, a ( E )-2-propenyloxy linker was used which was issued from an elegant regioselective dehydrohalogenation reaction. The remarkable microsegregation effect of the perfluorinated segment, led to the formation of highly stable untilted smectic mesophases. For all mesophases, the molecular packing corresponds to a monolayer arrangement of the mesogenic parts and a partial intercalation of the perfluorinated chains, measured by a intercalation ratio parameter τ F . Geometrical calculations based on Xrays data led to τ F comprised between 1.48 and 1.68 depending of the mesophase and temperature. |
| Databáze: | OpenAIRE |
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