物理化学学报 >> 2012, Vol. 28 >> Issue (10): 2291-2297.doi: 10.3866/PKU.WHXB201208131

软物质 上一篇    下一篇

基于稀土金属离子配位超分子聚合物的荧光微囊

王家锐, 杨飏, 阎云, 黄建滨   

  1. 北京大学化学与分子工程学院, 北京分子科学国家实验室, 北京100871
  • 收稿日期:2012-07-20 修回日期:2012-08-07 发布日期:2012-09-26
  • 通讯作者: 阎云, 黄建滨 E-mail:yunyan@pku.edu.cn; jbhuang@pku.edu.cn
  • 基金资助:

    北京大学校长基金及国家自然科学基金(20903005, 21173011, 51121091, 21073006)资助项目

Fluorescent Microcapsules Based on Coordination Supramolecular Polymers of Rare Earth Metal Ions

WANG Jia-Rui, YANG Yang, YAN Yun, HUANG Jian-Bin   

  1. Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2012-07-20 Revised:2012-08-07 Published:2012-09-26
  • Supported by:

    The project was supported by the President Foundation of Peking University and National Natural Science Foundation of China (20903005, 21173011, 51121091, 21073006).

摘要:

以基于金属配位作用的聚合物材料Eu-L2EO4为带负电的聚电解质, 利用静电相互作用通过层层组装的方法制备了自发光的聚合物荧光微囊. 该微囊壁孔径很小, 对小分子负载具有良好的封闭性, 且在盐浓度高达500 mmol·L-1时依然稳定, 表现出良好的耐盐性质. 以Eu3+-Tb3+混合离子取代Eu3+, 可以制备多色荧光微囊.

关键词: 层层组装, 荧光微囊, 金属配位聚合物超分子

Abstract:

Fluorescent microcapsules based on coordination supramolecular polymers of rare earth metal ions were prepared via a layer-by-layer technique that used electrostatic interaction. The holes in the capsule walls were very small, which reduced leakage of small molecular payloads. The capsules remained intact at salt concentrations as high as 500 mmol·L-1, which shows they have potential in practical applications. Multicolored capsules were obtained simply using a mixture of terbium and europium ions.

Key words: Layer-by-layer assembly, Fluorescent capsule, Metallic coordination supramolecular polymer

MSC2000: 

  • O648