节点文献
硝基苯衍生物结构与其淬灭聚(2,5-二戊氧基对亚苯基亚乙炔基)荧光效率的关系
THE RELATION BETWEEN THE STRUCTURE OF NITROBENZENE DERIVATIVES AND FLUORESCENCE QUENCHING EFFICIENCY TO THE POLY(2,5-DIPENTYLOXY-para-PHENYLENE ETHYNYLENE)
【Abstract】 The poly(2,5-dipentyloxy-para-phenylene ethynylene)(P) was synthesized by Pd-catalyzed Sonogashira coupling reaction.Due to causing energy transfer between the nitrobenzene’s quenchers and the polymer chains through the charge-transfer interaction,the fluorescence quenched properties of P varied obviously with the para-substituting group’s structure in the nitrobenzene derivatives.The fluorescence quenching efficiency of quenchers improved with increasing of electron repulsion capability of the para-substituting group.The fluorescence quenching efficiency increased nonlinearly with the concentration of the quenchers and had,however,no relation with the quenching time.
【关键词】 聚对亚苯基亚乙炔基;
硝基苯衍生物;
荧光淬灭;
【Key words】 Polyphenylene ethynylene; Nitrobenzene derivative; Fluorescence quenching;
【Key words】 Polyphenylene ethynylene; Nitrobenzene derivative; Fluorescence quenching;
【基金】 国家自然科学基金(基金号20504005)资助项目
- 【文献出处】 高分子学报 ,Acta Polymerica Sinica , 编辑部邮箱 ,2007年03期
- 【分类号】O631.3
- 【被引频次】17
- 【下载频次】251