强聚电解质对离子型芘衍生物探针的键合  

Binding of Ionic Derivative of Pyrene to Strong Polyelectrolyte

作　　者：王朝阳[1] 孙启龙[1] 童真[1] 刘新星[1] 曾钫[1] 高峰[1] 

机构地区：[1]华南理工大学材料科学研究所,广州510640

出　　处：《高等学校化学学报》2001年第7期1265-1267,共3页Chemical Journal of Chinese Universities

基　　金：国家青年科学基金 (批准号 :972 5 411);国家自然科学基金 (批准号 :980 40 0 3)

摘　　要：Binding of pyrene probe cation of 1 pyrenemethylamine hydrochloride(PyMeAH +) to sulfonate polyelectrolyte PAMPS in aqueous solution was investigated by the relative fluorescent intensity I E/ I M of the excimer to monomer. The saturation amount of repeat unit AMPS for the polyelectrolyte bound to one PyMeAH + ion was about 2 5 estimated from the maximum on the curve of I E/ I M vs. the probe concentrations. The increase of the ionic strength of the solution by adding salt or excess alkali ions of 10 -4 mol/L greatly reduced the I E/ I M value. This fact suggested that the probe cation PyMeAH + form a loose ion pair with the sulfonate anion on the polyelectrolyte.Binding of pyrene probe cation of 1 pyrenemethylamine hydrochloride(PyMeAH +) to sulfonate polyelectrolyte PAMPS in aqueous solution was investigated by the relative fluorescent intensity I E/ I M of the excimer to monomer. The saturation amount of repeat unit AMPS for the polyelectrolyte bound to one PyMeAH + ion was about 2 5 estimated from the maximum on the curve of I E/ I M vs. the probe concentrations. The increase of the ionic strength of the solution by adding salt or excess alkali ions of 10 -4 mol/L greatly reduced the I E/ I M value. This fact suggested that the probe cation PyMeAH + form a loose ion pair with the sulfonate anion on the polyelectrolyte.

关 键 词：强聚电解质 芘甲基胺盐酸盐 键合 激基缔合物 荧光光谱 离子型芘衍生物 静电相互作用 

分 类 号：O625.159[理学—有机化学] O631.4[理学—化学]