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Synthesis and Mesomorphism of Semi-Fluorinated Chain Liquid Crystals with [1,2,3]-Triazole Rings

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Abstract:

Series of semi-fluorinated chain liquid crystals with [1,2,3]-triazole rings have been synthesized with CuI-Et3N catalyzed alkyne-azide cycloaddition reaction. The selectively produced 1,4-disubstituted regioisomers were characterized by using IR, NMR, and Mass. The mesomorphic behaviors were characterized with polarizing optical microscopy and differential scanning calorimetry. Compounds with perfluorinated chains have showed smectic A phase.

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Periodical:

Key Engineering Materials (Volumes 428-429)

Pages:

135-139

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.428-429.135

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Online since:

January 2010

Authors:

Yang Yang, Ke Qing Zhao, Wen Hao Yu, Bi Qin Wang, Ping Hu

Keywords:

Click Chemistry, Copper Catalyzed Alkyne-Azide Cycloaddition, Semi-Fluorinated Chain, Smectic A Phase

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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