摘要
本文通过Still偶联反应合成了4,7-二(4-己基噻吩-2-基)-2,1,3-苯并噻二唑,进一步经Fe Cl3氧化法合成得到聚(4,7-二(4-己基噻吩-2-基)-2,1,3-苯并噻二唑)(PHB),并利用紫外-可见吸收光谱、荧光光谱、发光光谱、循环伏安曲线及热重(TG)进行表征.与聚3-己基噻吩(P3HT)的光/电化学性质比较表明,共轭链中D-A推拉电子结构的形成能显著提高共轭高分子聚合物最大吸收波长,降低带隙.
4,7-bis （4-hexylthiophen-2-yl）-2,1,3-benzothiadiazole, which has been synthesized by Still coupling reaction, was used as monomer for preparing poly （4,7-bis （4-hexylthiophen-2-yl）-2,1,3-benzothiadiazole） （PHB）by oxidative polymerization with FeC13. UV-visible absorption spectroscopy, fluorescence spectroscopy, photoluminescence spectroscopy, cyclic voltammetry , and TG of the polymer have been recorded. By Comparing the optical/electrochemical properties of poly （4,7-bis （4-hexylthiophen-2-yl）-2,1,3-benzothiadiazole）with poly（3-hexylthiophen） （P3HT）, it is shown that D-A electronic push--pull structure can significantly improve the maximum absorption wavelength and lower the band gap.
出处
《天津理工大学学报》
2015年第3期47-50,共4页
Journal of Tianjin University of Technology
基金
国家自然科学基金(21176193)
关键词
光/电性质
聚噻吩
苯并噻二唑
optical/electrochemical properties
polythiophene
benzothiadiazole
