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

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)
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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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