Materials 2014, 7(5), 4045-4056; doi:10.3390/ma7054045

Novel Discotic Boroxines: Synthesis and Mesomorphic Properties

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Received: 8 April 2014; in revised form: 7 May 2014 / Accepted: 8 May 2014 / Published: 22 May 2014
(This article belongs to the Special Issue Liquid Crystals)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: A new synthetic approach to highly substituted triphenylboroxines 11 is described. Their mesomorphic properties were investigated by differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and X-ray diffraction (SAXS, WAXS). The tris(3,4,5-trialkyloxy)phenyl functionalized derivatives 11be showed broad mesophases for a minimum alkyl chain length of C9. The phase widths ranged from 110 K to 77 K near room temperature, thus decreasing with enhanced alkyl chain lengths. Textures observed under POM indicated a columnar hexagonal (Colh) mesophase symmetry that was confirmed by X-ray diffraction experiments.
Keywords: boroxines; liquid crystals; columnar; synthesis
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MDPI and ACS Style

Wöhrle, T.; Baro, A.; Laschat, S. Novel Discotic Boroxines: Synthesis and Mesomorphic Properties. Materials 2014, 7, 4045-4056.

AMA Style

Wöhrle T, Baro A, Laschat S. Novel Discotic Boroxines: Synthesis and Mesomorphic Properties. Materials. 2014; 7(5):4045-4056.

Chicago/Turabian Style

Wöhrle, Tobias; Baro, Angelika; Laschat, Sabine. 2014. "Novel Discotic Boroxines: Synthesis and Mesomorphic Properties." Materials 7, no. 5: 4045-4056.

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