Synthesis and Low-temperature Viscosity Characters of Difluorometheneoxy-bridged Alkylbenzene Compounds

doi:10.3724/SP.J.1095.2012.00338

Chinese Journal of Applied Chemistry

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Synthesis and Low-temperature Viscosity Characters of Difluorometheneoxy-bridged Alkylbenzene Compounds

DENG Mengmeng¹, WANG Yongli¹, ZHANG Zhiyong^1*, LIU Yun¹, WEI Benmei¹, XUAN Li²

(1.Department of Chemistry and Environmental Engineering,Wuhan Polytechnic University,Wuhan 430023,China；
2.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China)

Received:2011-07-29 Revised:2011-11-16 Published:2012-09-10 Online:2012-09-10

Abstract

Abstract: Four double-ring difluorometheneoxy-bridged benzene compounds were synthesized and characterized by means of IR, 1H NMR, 13C NMR, 19F NMR and MS. Their viscosities at different temperatures were also measured and analyzed by using liquid dynamic rheometer. It was found that these compounds not only have super low viscosity and small temperature-dependent viscosity, but also can be used as the solvent of LC to replace ester components. They may be used as the LC solvent to improve the low-temperature response speed of LCD.

Key words: difluorometheneoxy-bridged alkylbenzenes, two-ring liquid crystal compounds, synthesis, low-temperature viscosity, temperature dependence

CLC Number:

O621.2

DENG Mengmeng1, WANG Yongli1, ZHANG Zhiyong1*, LIU Yun1, WEI Benmei1, XUAN Li2. Synthesis and Low-temperature Viscosity Characters of Difluorometheneoxy-bridged Alkylbenzene Compounds[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2012.00338.

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Synthesis and Low-temperature Viscosity Characters of Difluorometheneoxy-bridged Alkylbenzene Compounds

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