共轭链含偶氮苯聚噻吩衍生物的合成及光电性能  

Synthesis and Photoelectronic Properties of Polythiophene Derivertive Containing Azobenzene in the Conjugated Chain

作　　者：刘福德[1] 乌海燕[1] 王娟[1] 周勇[1] 王庆秀[1] 

机构地区：[1]天津理工大学化学化工学院,天津300384

出　　处：《高分子材料科学与工程》2013年第5期21-24,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(21176193)

摘　　要：以对乙酰胺基苯胺为原料合成4,4′-二氨基偶氮苯,进一步经重氮化、Sandmeyer反应得到4,4′-二溴偶氮苯,再经Suzuki偶联反应得到4,4′-二(2-噻吩基)偶氮苯,利用红外光谱(IR)和核磁共振谱对各产物进行了表征。采用FeCl3氧化聚合成得到聚4,4′-二(2-噻吩基)偶氮苯,并测定其UV-Vis吸收光谱、溶液及固体荧光光谱、循环伏安曲线及光致发光光谱,得到该聚合物光学带隙Eg为2.14eV,电化学带隙为2.06 eV,EHOMO为-5.56 eV,ELUMO为-3.50 eV。Using p-acetylaminoaniline as starting reactant, 4,4′-diaminoazobenzene was synthesized, and further by diazotization, Sandmeyer reaction 4, 4′- dibromoazobenzene was synthesized too, then by the Suzuki cross coupling reaction, 4,4′-bis（2-thienyl） azobenzene was prepared. All the above products were characterized by IR, 1H-NMR and 13C-NMR. PolY （4,4′-bis （2-thienyl） azobenzene） synthesized by oxidation of 4,4′- bis（2-thienyl） azobenzene with FeC13 was characterized by UV-Vis spectra, fluorescent spectra, cyclic voltammetry and photoluminescence（PL） spectra. The optical band gap Eg of the conjugated polymer is 2.14 eV, the electronic band gap Eg is 2.06eV, EHOMO is - 5.56 eV and ELUMO is - 3.50 eV.

关 键 词：4 4′-二溴偶氮苯 4 4′-二(2-噻吩基)偶氮苯 聚噻吩衍生物 

分 类 号：O633.2[理学—高分子化学]