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学科主题: 氟化学
题名: Synthesis and mesomorphic properties of some fluorinated benzoate liquid crystals
其他题名: Synthesis and mesomorphic properties of some fluorinated benzoate liquid crystals
作者: Yang YG(杨永刚) ; CHEN HAO ; Tang G(唐赓) ; Wen JX(闻建勋)
通讯作者: 杨永刚
刊名: Mol. Cryst. Liquid Cryst.
发表日期: 2002-01-01
卷: 373, 页:1-15
收录类别: SCI
部门归属: 中国科学院上海有机化学研究所
英文摘要: Three series of [4-(4'-n-alkyloxyphenyl)acetylenyl]-2,6-difluorophenyl fluorinated benezoates and one series of fluorinated benzoates with 2,3,5,6-tetrafluorophenylene group and semi-perfluorocarbon chain have been synthesized. Their phase transition temperatures have been measured by texture observation in a polarizing microscope and confirmed by DSC. For the series without fluorocarbon chains, increasing the quantity of fluorosubstituents on the terminal phenyl groups decreased nematic stability (TN-1), but the breadth of the SmA phase range was increased. Lateral fluorosubstitution in the central group lowered the nematic stability (TN-1) and decreased the breadth of the SmA phase range. The series with semiperfluorocarbon chains were more likely to form SmA phases than the series with hydrogencarbon chains, and with the increasing of fluorosubstituents quantity on the terminal phenyl groups nematic and SmA stability (T(N-)1 and TSmA-N) were both decreased.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000175886800001
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/21669
Appears in Collections:中科院有机氟化学重点实验室_期刊论文

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Recommended Citation:
Yang YG,CHEN HAO,Tang G,et al. Synthesis and mesomorphic properties of some fluorinated benzoate liquid crystals[J]. Mol. Cryst. Liquid Cryst.,2002,373:1-15.
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