聚吲哚及其衍生物的荧光光谱  

The Fluorescence Spectra of Polyindole and its Derivatives

作　　者：周卫强[1] 徐景坤[2] 郭孟萍[1] 

机构地区：[1]宜春学院配位催化研究所,江西宜春336000 [2]江西科技师范学院江西省有机功能分子重点实验室,南昌330013

出　　处：《化学通报》2008年第1期75-79,共5页Chemistry

基　　金：国家自然科学基金(20564001,50663001);江西省教育厅基金项目(2006[243])资助

摘　　要：在三氟化硼乙醚及其混合电解质中,吲哚及其衍生物阳极氧化可以获得高质量的聚吲哚及其衍生物膜:聚吲哚、聚(5-甲基吲哚)、聚(5-硝基吲哚)、聚(5-氰基吲哚)、聚(5-溴吲哚)。它们可溶于DMSO和THF中。聚吲哚及其衍生物具有良好的荧光性质;单体的发射光谱与取代基有关,而聚合物的发射光谱几乎不受取代基的影响。电子离域程度增大,使得聚合物的激发和发射光谱红移,宽的分子量分布则会使聚合物的激发和发射光谱变宽。High quality polyindoles films, such as polyindole, poly （5-methylindole）, poly （5-nitroindole）, poly （5- cyanoindole）, poly （5-bromoindole）, were synthesized electrochemically by direct anodic oxidation of indole and its derivatives in boron trifluoride diethyl etherate （BFEE） or its mixed electrolytes. They were soluble in dimethyl sulfoxide （DMSO） and tetrahydrofuran （THF）. The fluorescent emission properties of indole and its derivatives depend on the nature of the substituents strongly, but this dependence is almost not observed in the synthesized polymers. The excitation and emission spectra of the polymer showed a significant red shift compared to the monomers, in consistent with their greater extent of electron delocalisation. The broader excitation and emission spectra of polyindoles can be ascribed to the wide molar distribution of as-prepared polymers.

关 键 词：导电高分子 聚吲哚及其衍生物 电化学聚合 三氟化硼乙醚 荧光特性 

分 类 号：O633.5[理学—高分子化学]