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Molecular Crystals and Liquid Crystals Volume 542, 2011 - Issue 1: Proceedings of the 23rd International Liquid Crystal Conference (ILCC 2010) Part III of VIII
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Molecular Design, Synthesis and New Materials

Synthesis and Mesomorphism of Asymmetric Triphenylene Discotic Liquid Crystals Bearing with Mono-Amido-Based Alkyl Soft Chains

K. Q. Zhao School of Chemistry and Materials Sciences, Sichuan Normal University, Chengdu, ChinaCorrespondence[email protected]
,
J. Z. Guo School of Chemistry and Materials Sciences, Sichuan Normal University, Chengdu, China
,
W. H. Yu School of Chemistry and Materials Sciences, Sichuan Normal University, Chengdu, China
,
L. Wang School of Chemistry and Materials Sciences, Sichuan Normal University, Chengdu, China
,
P. Hu School of Chemistry and Materials Sciences, Sichuan Normal University, Chengdu, China
,
B. Q. Wang School of Chemistry and Materials Sciences, Sichuan Normal University, Chengdu, China
,
H. Monobe National Institute of Advanced Industrial Science and Technology, Kansai Center, Midorigaoka, Ikeda, Osaka, Japan
&
Y. Shimizu National Institute of Advanced Industrial Science and Technology, Kansai Center, Midorigaoka, Ikeda, Osaka, Japan
 show all
Pages 37/[559]-47/[569] | Published online: 14 Jun 2011
 
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Abstract

A series of triphenylene discotic liquid crystals with amido-based alkyl chains in different lengths were synthesized and characterized. The liquid crystal properties were studied with differential scanning calorimetry and polarizing optical microscopy. The influences of amide alkyl chain lengths on the mesomorphism were discussed. Based on the results, we concluded that the triphenylene discogens with an amido-based alkyl chain could form intermolecular hydrogen bonds inside their columnar stacks, and hence, exhibit higher melting and clearing points, and wider mesophase ranges.

Acknowledgment

This work was supported by the National Natural Science Foundation of China (Contract No. 50973076).

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