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亚甲氧基桥键弯曲型液晶合成与性能研究

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成果类型:
期刊论文
作者:
Wang Yongli*;Du Qiong;Wang Guohua;Zhang Zhiyong;Dai Zhiqun;...
通讯作者:
Wang Yongli
作者机构:
[Wang Guohua; Dai Zhiqun; Wang Yongli; Du Qiong; Zhang Zhiyong; Guan Jintao] Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China.
[Xiang Ying] Guangdong Polytech Univ, Dept Technol Inst & Informat Engn, Guangzhou 510006, Guangdong, Peoples R China.
通讯机构:
[Wang Yongli] W
Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China.
语种:
中文
关键词:
弯曲型液晶;噁二唑;亚甲氧基;合成;低熔点
关键词(英文):
Bent-core liquid crystal;Low melting points;Oxadiazol;Oxymethylene;Synthesis
期刊:
有机化学
ISSN:
0253-2786
年:
2013
卷:
33
期:
9
页码:
2010-2015
基金类别:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11074054]; Scientific Research Found of Hubei Provincial Education Department [20091801]; Educational and Innovative Foundation for the Graduate Students of Wuhan Polytechnic University [2011cx003]
机构署名:
本校为第一且通讯机构
院系归属:
化学与环境工程学院
摘要:
本文以2, 5-二(4-羟基苯基)-1, 3, 4-噁二唑为中心基团, 亚甲氧基(-CH2O-)为桥键, 烷基(m=3、5、6、7、8、9、10)为末端基团合成了一系列新型弯曲型液晶化合物. 通过IR、~1H NMR、~(13)C NMR和MS对其结构进行鉴定, 经差热扫描仪(DSC)和偏光显微镜(POM)测定其液晶相态. 结果表明, 目标化合物6a~6g的分子结构正确, 其熔点较结构相当的酯类液晶化合物低, 除6c外, 其它化合物熔点均在100 ℃以下, 都呈现液晶相态, 且化合物6d~6g的相态温度范围较宽, 并呈现奇偶效应.
摘要(英文):
A novel series of bent-core molecules with a central bent core based on 2,5-bis(4-hydroxyphenyl)-1,3,4-oxadiazole, oxymethylene-bridged (CH2O), and alkyl tails with carbon numbers m=3, 5, 6, 7, 8, 9, 10 were prepared. Structures of the titled compounds were confirmed by 1H NMR, 13C NMR, IR, MS techniques, their transition temperatures and phase transition were investigated using differential scanning calorimetric (DSC) and polarizing optical microscopy (POM). Comparing with ester-bridged, target compounds 6a~6g have right chemical structure, po...

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