Luminescent Polymeric Dispersions and Films Based on Oligonuclear Lanthanide Clusters

被引：34
作者：
Hauser, Christoph P. [1 ]
Thielemann, Dominique T. [2 ]
Adlung, Matthias [3 ]
Wickleder, Claudia [3 ]
Roesky, Peter W. [2 ]
Weiss, Clemens K. [1 ]
Landfester, Katharina [1 ]
机构：
[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
[2] Karlsruhe Inst Technol, Inst Inorgan Chem, D-76131 Karlsruhe, Germany
[3] Univ Siegen, D-57068 Siegen, Germany
来源：
MACROMOLECULAR CHEMISTRY AND PHYSICS | 2011年 / 212卷 / 03期
关键词：
hybrid nanoparticles; luminescence; miniemulsions; lanthanide; thin films; MOLECULE-MAGNET BEHAVIOR; MINIEMULSION POLYMERIZATION; STRUCTURAL-CHARACTERIZATION; CELLULAR UPTAKE; BUILDING-BLOCK; NANOPARTICLES; COMPLEXES; PARTICLES; IONS; NANOSTRUCTURES;
D O I：
10.1002/macp.201000461
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The successful embedding of different amounts and types of hydrophobic rare earth clusters (Ln = Y, Pr, Eu, Sm, Nd) in various polymer matrices via miniemulsion polymerization is presented. The resulting cluster-polymer hybrid nanoparticles are spherical in shape and possess a narrow size distribution, as investigated by photon cross correlation spectroscopy (PCCS) and transmission electron microscopy (TEM). The exact Ln-content in the nanoparticles is exemplarily investigated for Eu- and Nd-containing polymer dispersions via inductively coupled plasma-optical emission spectrometry (ICP-OES). As a result of encapsulation more than 1000 mg . L-1 of the hydrophobic Ln-duster are successfully dispersed in water. The photophysical properties of the emulsion show the successful avoidance of water from the vicinity of the clusters. Furthermore, a very efficient energy transfer from the ligand and polymeric unit to Eu3+ ions can be observed in dispersion. Based on the different glass transition temperatures (T-g) of the applied polymers, monolayers of the nanoparticles and efficient luminescent thin polymer films are obtained by spin coating.
引用
收藏
页码：286 / 296
页数：11
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