| 新型偶氮类聚硅氧烷液晶的合成及表征 |
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| 引用本文： | 周光强,高建峰,杨丽娜,孙中战. 新型偶氮类聚硅氧烷液晶的合成及表征[J]. 有机硅材料, 2011, 25(4) |
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| 作者姓名： | 周光强 高建峰 杨丽娜 孙中战 |
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| 作者单位： | 中北大学理学院化学系,太原,030051 |
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| 摘 要： | 通过对硝基苯胺和苯酚的重氮化反应合成了端基为硝基的刚性基元,再经醚化、加成、酯化反应,合成了偶氮类聚硅氧烷液晶.通过IR、1H NMR对该化合物的结构进行了鉴定,并用POM、DSC对其液晶行为进行了表征.结果表明,该化合物属于近晶A型液晶,相变区间为155.558～226.381℃.
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| 关 键 词： | 聚硅氧烷 偶氮 液晶 硝基 |
Synthesis and Characterization of a New Polysiloxane Liquid Crystal Containing Azo Group |
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| ZHOU Guang-qiang,GAO Jian-feng,YANG Li-na,SUN Zhong-zhan. Synthesis and Characterization of a New Polysiloxane Liquid Crystal Containing Azo Group[J]. Silicone Material, 2011, 25(4) |
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| Authors: | ZHOU Guang-qiang GAO Jian-feng YANG Li-na SUN Zhong-zhan |
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| Affiliation: | ZHOU Guang-qiang,GAO Jian-feng,YANG Li-na,SUN Zhong-zhan(Dept of Chemistry,School of Science,North University of China,Taiyuan 030051,Shanxi) |
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| Abstract: | The rigid mesogenic units containing nitro was synthesized by diazotization,then polysiloxane liquid crystal polymer containing azo group had been synthesized through etherification,addition and etherification reaction.Structure of the compound was studied by IR and 1H-NMR.Polarizing Microscopic Observations and Differential Scanning Calorimeter(DSC) was used to observe its liquid crystalline behavior.The results showed that it was Smectic A liquid crystal with a wide phase-transition temperature range from... |
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| Keywords: | polysiloxane azo liquid crystal nitro |
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