对称偶氮苯的合成及性质  

Synthesis and Properties of Symmetric Azobenzene Derivative

作　　者：严超[1] 肖玉龙[1] 戴衡[1] 程晓红[1] 

机构地区：[1]教育部自然资源药物化学重点实验室,云南大学化学科学与工程学院,昆明650091

出　　处：《高等学校化学学报》2016年第3期475-479,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:21274119;21364017);云南省应用基础研究计划重点项目(批准号:2013FA007);云南省教育厅科学研究基金重大专项项目(批准号:ZD2015001)资助~~

摘　　要：以Cu(Ⅰ)催化的氨基偶联反应为关键步骤,合成了末端各带3条柔性烷基链的最简单小分子偶氮凝胶剂——对称偶氮苯化合物A;通过~1H NMR,^(13)C NMR和元素分析鉴定了其结构;采用紫外光谱和SEM等手段对其性质进行了表征.凝胶实验结果表明,该化合物能在极性、非极性有机溶剂中形成凝胶,且该凝胶在紫外光和可见光照射下能够发生凝胶-溶液的可逆转化.SEM表征结果表明,该凝胶具有由纤维束聚集成的三维网状结构,此外还具有热响应性和机械响应性.紫外光谱测试结果表明,该化合物具有光响应性.A new symmetric azobenzene compound（ A） with triple alkoxy chain in each terminal was synthesized via Cu（ Ⅰ）-catalyzed amino coupling reaction as the key step. The structure of this compound was identified with1 H NMR,13 C NMR and elemental analysis. The property of compound A was investigated by UV-Vis spectroscopy and scanning electron microscopy（ SEM）. The results showed that compound A can form organolgels with different organic solvents,and the sol-gel transition could be observed under UV and visible light irradiation. The SEM images of xerogels of compound A showed the formation of three-dimensional networks composed of entangled fibrous aggregates. The gels were heating-,light-and mechan-responsive. The UV-Vis spectroscopy confirmed the photoresponsible behavior of compound A.

关 键 词：偶氮苯 光响应 凝胶 

分 类 号：O625.65[理学—有机化学]