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化学学报
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化学学报 ›› 2006, Vol. 64 ›› Issue (10): 963-967.    下一篇

研究通讯

表面活性剂对共轭聚合物荧光性质及电荷转移的影响

杜娟1,2，赵丹1，陈彦国1,3，何治柯*,1   

  1. (1武汉大学化学与分子科学学院 武汉 430072)
    (2襄樊学院化学与生命科学系 襄樊 441053)
    (3湖北师范学院化学系 黄石 435002)
  • 投稿日期:2005-11-04 修回日期:2006-02-16 发布日期:2006-05-25
  • 通讯作者: 何治柯

Effects of Different Surfactants on Fluorescent Properties and Charge Transfer of Conjugated Polymer

DU Juan1,2, ZHAO Dan1, CHEN Yan-Guo1,3, HE Zhi-Ke*,1   

  1. (1 College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072)
    (2 Department of Chemistry and Biological Science, Xiangfan College, Xiangfan 441053)
    (3 Department of Chemistry, Hubei Normal University, Huangshi 435002)
  • Received:2005-11-04 Revised:2006-02-16 Published:2006-05-25
  • Contact: HE Zhi-Ke

PDF

1542

被引次数

24 | 7

探讨了表面活性剂存在下, 水溶性阴离子共轭聚合物聚[5-甲氧基-2-(3-磺酰化丙氧基)-1,4-苯撑乙烯](简写为MPS-PPV)的微环境变化对荧光性质及电荷转移的影响. 结果表明, 阳离子表面活性剂及非离子表面活性剂使MPS-PPV荧光增强, 阴离子表面活性剂使其荧光先增强后减弱; 在MPS-PPV/表面活性剂体系中加入电子接受体Pd2＋, 发现非离子表面活性剂体系的荧光猝灭效率提高, 阴离子及阳离子表面活性剂体系荧光猝灭效率下降. 此研究对研制基于阴离子共聚物的新型生物化学传感器具有一定的指导意义.

关键词: 荧光共轭聚合物, 表面活性剂, 荧光性质, 电荷转移

The influence of different surfactants on fluorescent properties and charge transfer of water-soluble anionic conjugated polymer poly[5-methoxy-2-(3-sulfopropoxy)-1,4-phenylenevinylene] (MPS- PPV) was investigated. Cationic and nonionic surfactants enhanced the fluorescence intensity of MPS-PPV, while anionic surfactant firstly enhanced then reduced the intensity with the increase of its concentration. Upon adding the electron acceptor Pd2＋into MPS-PPV/surfactant system, fluorescence quenching efficiency of Pd2＋was increased in the presence of nonionic surfactant, but the efficiency decreased in the presence of anionic or cationic surfactant. Such studies will provide guidelines to develop the novel anionic conjugated polymer-based biological and chemical sensors.

Key words: fluorescent conjugated polymer, surfactant, fluorescent property, charge transfer