1,4-二乙氧基苯与3,4-亚乙基二氧噻吩的电化学共聚  

Electrochemical copolymerization of 1,4-diethoxybenzene and 3,4-ethylenedioxythiophene

作　　者：张诚[1] 王纳川[1] 徐意[1] 马淳安[1] 

机构地区：[1]绿色化学合成国家重点实验室培育基地浙江工业大学化学工程与材料学院,浙江杭州310014

出　　处：《化工学报》2008年第S1期93-97,共5页CIESC Journal

摘　　要：利用恒电位聚合法合成了1,4-二乙氧基苯(DEB)与3,4-亚乙基二氧噻吩(EDOT)的共聚物。单体浓度为DEB 0.1 mol·L^(-1),EDOT 0.01 mol·L^(-1),溶液为乙腈,四丁基高氯酸铵(TBAP)为支持电解质。研究不同电位下聚合的共聚物的电化学性能。并用扫描电子显微镜观察了共聚物在ITO玻璃上的成膜情况。结果表明EDOT的加入可提高DEB的电化学活性以及在ITO玻璃电极上的成膜性能。荧光光谱显示出共聚物在402 nm和530 nm有较强的发射峰,说明EDOT的加入成功调节了聚1,4-二乙氧基苯(PDEB)的发光波长(399 nm)。The copolymerization of 1,4-diethoxybenzene(DEB)and 3,4-ethylenedioxythiophene(EDOT) is achieved electrochemically in acetonitrile containing 0.1 mol·L^(-1)tetrabutylammonium perchlorate (TBAP)as supporting electrolyte by direct anodic oxidation of the monomer mixtures on platinum and indium tin oxide(ITO)glass electrodes.The electrochemical properties of copolymer indicate that the electrochemical activity and capacitive property of the copolymers are much higher than that of pure poly (1,4-diethoxybenzene)(PDEB)due to the incorporation of EDOT unit into the copolymers.The structure and morphology of the copolymer are investigated by Fourier transform infrared(FT-IR)spectroscopy, scanning electron microscopy(SEM),respectively.The photoluminescence spectrum of copolymer and PDEB show that the emitting wavelength will red shift from 399nm to 530nm by introduction of EDOT.These results indicate that the electrocopolymerization of DEB and narrow band gap moiety provides a simple way to turn the emission color of PDEB.

关 键 词：电化学共聚 1 4-二乙氧基苯 3 4-亚乙基二氧噻吩 电化学性能 表面形貌 光致发光 

分 类 号：O633.5[理学—高分子化学]