- 作者: Xi-Min Chen, Kan Wang, Heng-Feng Li, Ke-Gang Liu and Jian-Xun Wen
- 中文摘要: Six series of 4-4'-n-alkoxy-2',3',5',6'-tetrafluorobiphenyl carboxylate esters have been synthesized. Their mesomorphic properties were investigated and measured by optical polarizing microscopy and DSC. The results show that target compounds bearing a nitro group as terminal group exhibit wide mesophases. However, their terminal groups are trifluoromethyl, fluorine atoms, chlorine atoms, bromine atoms and hydrogen atoms, which aren’t mesogens.
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