Synthesis, Preparation, and Characterization of Liquid Crystal/Organo-Montmorillonite Nanocomposites

A new chiral calamitic liquid crystal 4′-((S)-3,7-dimethyloctyloxy)phenyl 4-(10-undecen-1-yloxy)benzoate (DOPUB) has been synthesized and characterized by spectroscopic methods ( 1 H-NMR and 13 C-NMR). The focus is on the preparation of the nanocomposites of new chiral calamitic liquid crystal DOPUB...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2015-01, Vol.607 (1), p.23-31
Main Authors: Yanic, Serap Mutlu, Guzeller, Dilek, Ocak, Hale, Cakar, Fatih, Erol, Ismail, Cankurtaran, Ozlem, Eran, Belkis Bilgin
Format: Article
Language:English
Subjects:
Cationic
Clay minerals
Crystals
Differential scanning calorimetry
Diffraction
Liquid crystal
Liquid crystals
Microscopy
montmorillonite
Morphology
Nanocomposites
Polarization
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Summary:A new chiral calamitic liquid crystal 4′-((S)-3,7-dimethyloctyloxy)phenyl 4-(10-undecen-1-yloxy)benzoate (DOPUB) has been synthesized and characterized by spectroscopic methods ( 1 H-NMR and 13 C-NMR). The focus is on the preparation of the nanocomposites of new chiral calamitic liquid crystal DOPUB/Organo-montmorillonite clay (OMMT) by solution intercalation method addition with OMMT contents 2.5, 5, and 7.5 wt% and determination of the morphology, thermal behavior, and crystalline properties of liquid crystal DOPUB/OMMT. Montmorillonite (MMT) modified by cationic surfactant cetyltrimethylammonium bromide (CTAB) for increasing the interaction of clay with DOPUB liquid crystal. The characterization of clay minerals and nanocomposites was investigated by X-ray diffraction. The mesomorphic behavior of liquid crystal (DOPUB) and the nanocomposites was investigated by differential scanning calorimetry (DSC) and optical polarizing microscopy (PM).
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2014.927550