高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (7): 1265.

• 研究简报 • 上一篇    下一篇

强聚电解质对离子型芘衍生物探针的键合

王朝阳, 孙启龙, 童真, 刘新星, 曾钫, 高峰   

  1. 华南理工大学材料科学研究所, 广州 510640
  • 收稿日期:2000-06-22 出版日期:2001-07-24 发布日期:2001-07-24
  • 通讯作者: 童 真(1956年出生),男,博士,教授,博士生导师,主要从事聚电解质及其水凝胶研究.
  • 基金资助:

    国家青年科学基金(批准号:9725411);国家自然科学基金(批准号:9804003)

Binding of Ionic Derivative of Pyrene to Strong Polyelectrolyte

WANG Chao-Yang, SUN Qi-Long, TONG Zhen, LIU Xin-Xing, ZENG Fang, GAO Feng   

  1. Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
  • Received:2000-06-22 Online:2001-07-24 Published:2001-07-24

关键词: 聚电解质, 芘离子衍生物, 键合, 激基缔合物, 荧光光谱

Abstract: Binding of pyrene probe cation of 1-pyrenemethylamine hydrochloride(PyMeAH+) to sulfonate polyelectrolyte PAMPSin aqueous solution was investigated by the relative fluorescent intensity IE/ IM of the excimer to monomer. The saturation amount of repeat unit AMPSfor the polyelectrolyte bound to one PyMeAH+ ion was about 2.5 estimated from the maximum on the curve of IE/ IMvs. the probe concentrations. The increase of the ionic strength of the solution by adding salt or excess alkali ions of 10-4 mol/Lgreatly reduced the IE/ IMvalue. This factsuggested that the probe cation PyMeAH+ form a loose ion pair with the sulfonate anion on the polyelectrolyte.

Key words: Polyelectrolyte, Ionic derivative of pyrene, Binding, Excimer, Fluorescence spectra

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