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化学学报
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化学学报 ›› 2006, Vol. 64 ›› Issue (4): 357-362. 上一篇    

研究论文

“配位诱导”铕(III)/聚乙二醇-聚丙烯酸嵌段聚合物胶束的研究

金岚，汪长春*   

  1. (复旦大学高分子科学系 聚合物分子工程教育部重点实验室 上海 200433)
  • 投稿日期:2005-05-24 修回日期:2005-10-26 发布日期:2006-02-28
  • 通讯作者: 汪长春

Study on the Formation of Eu(III)/PEO-b-PAA Micelles by Coordinated Induction

JIN Lan, WANG Chang-Chun*   

  1. (Department of Macromolecular Science and the Key Laboratory of Polymer Engnieering of Ministry of Education,
    Fudan University, Shanghai 200433)
  • Received:2005-05-24 Revised:2005-10-26 Published:2006-02-28
  • Contact: WANG Chang-Chun

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被引次数

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研究了稀土金属铕(Ⅲ)-联吡啶(bpy)有机配合物与双亲水性两嵌段聚合物聚乙二醇-聚丙烯酸(PEO113-b-PAA82)在不同溶剂中[V(水)∶V(乙醇)＝7.5∶1, 5∶1]通过“配位诱导”作用在水中形成配合物胶束的过程. 荧光光谱结果表明Eu(Ⅲ)分别与bpy和PAA发生配位, Eu(Ⅲ)与PAA中羧基的配位使聚合物发生交联在水性溶剂中形成了配合物胶束. 用动态激光光散射(DLS), 原子力显微镜(AFM)和透射电镜(TEM)等测试方法对配合物胶束的形态及尺寸进行了表征.

关键词: 稀土金属, 双亲水性嵌段共聚物, 配位诱导, 配合物胶束

Through coordination-induced method, the process of micellization via rare earth metal Eu(Ⅲ)- bipyridine (bpy) with block copolymer of PEO-b-PAA (PEO113-b-PAA82) in different solvents [V(H2O)∶V(alcohol)＝7.5∶1, 5∶1] has been studied. Fluorescence spectroscopy showed that Eu(Ⅲ)/bipyridine and Eu(III)/carboxyl of PAA could form coordinative complex, respectively. The coordinated micelles were formed through the coordination of Eu(III) and carboxyl of PAA in water. The morphologies and sizes of the micelles were characterized by dynamic laser scattering (DLS), atomic force microscopy (AFM) and transmission electron microscopy (TEM) and so on.

Key words: rare earth metal, double hydrophilic block copolymer, coordinated-induction, coordination micelle