| 偶氮型液晶冠醚的合成与表征 |
| |
| 引用本文： | 张淑媛,朱鑫,张晓静,郑世军,李自法.偶氮型液晶冠醚的合成与表征[J].有机化学,2006,26(1):129-133. |
| |
| 作者姓名： | 张淑媛 朱鑫 张晓静 郑世军 李自法 |
| |
| 作者单位： | 1. 郑州大学化学系,郑州,450052
2. 郑州大学材料工程学院,郑州,450052 |
| |
| 基金项目： | 国家自然科学基金(No.29974026)，河南省自然科学基金，河南省教育厅自然科学基金资助项目. |
| |
| 摘 要： | 以4'-正烷氧基联苯-4-甲酸和顺(反)-4,4'-双(4-羟基苯基偶氮)二苯并-14-冠-4为中间体, 通过溶液缩合反应, 合成了一系列偶氮型液晶冠醚. 并用元素分析、核磁共振、紫外可见分光光度计、红外光谱、基质辅助激光解析电离飞行时间质谱、示差扫描量热法和偏光显微镜对其进行了表征. 随分子末端烷氧基碳原子数增加, 化合物4I和4II的熔点(Tm)和液晶态的清亮点(Ti)逐渐降低, 液晶态温度范围较宽.
|
| 关 键 词： | 偶氮型 冠醚 热致性液晶 合成 |
| 收稿时间： | 2005-3-8 |
| 修稿时间： | 07 18 2005 12:00AM |
Synthesis and Characterization of Azo Type Liquid Crystalline Crown Ethers |
| |
| ZHANG,Shu-Yuan,ZHU,Kin,ZHANG,Xiao-Jing,ZHENG,Shi-Jun,LI,Zi-Fa.Synthesis and Characterization of Azo Type Liquid Crystalline Crown Ethers[J].Chinese Journal of Organic Chemistry,2006,26(1):129-133. |
| |
| Authors: | ZHANG Shu-Yuan ZHU Kin ZHANG Xiao-Jing ZHENG Shi-Jun LI Zi-Fa |
| |
| Institution: | a. Department of Chemistry, Zhengzhou University, Zhengzhou 450052;b. College of Materials and Engineering, Zhengzhou University, Zhengzhou 450052 |
| |
| Abstract: | A series of azo type liquid crystalline crown ethers were synthesized using the intermediates of 4'-n-alkoxylbiphenyl-4-carboxylic acids and cis(trans)-4,4'-bis(4-hydroxyphenylazo)dibenzo-14-crown-4. Their structures and properties were characterized by elemental analysis, 1H NMR, UV-Vis, IR, MALDI-TOF-MS, DSC and polarizing optical microscopy with a heating stage. For compounds 4I and 4II, both melting point Tm and isotropization temperature Ti were decreased with the increase of the carbon numbers of the end alkoxy groups. However, the temperature range of liquid crystal phase was relatively wide. |
| |
| Keywords: | azo type crown ether thermotropic liquid crystal synthesis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《有机化学》浏览原始摘要信息 |
| 点击此处可从《有机化学》下载免费的PDF全文 |
|
