Preparation and Properties of Magnetic-fluorescent Microporous Polymer Microspheres  

作　　者：ZOU Xiaohu WEI Zhizhi DU Jing WANG Xiaotao ZHANG Gaowen 

机构地区：[1]Hubei Provincial Key Laboratory of Green Materials for Light Industry, School of Materials and ChemicaI Engineering, Hubei University of Technology, Wuhan 430068, P. R. China

出　　处：《Chemical Research in Chinese Universities》2018年第4期684-690,共7页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China（Nos. 11174075, 31303049）.

摘　　要：Microporous microspheres can be used as functional nanomaterial carriers for their microporous structure and higher specific surface area. In this study, magnetic fluorescent polymer microspheres were prepared by incorporating Fe304 nanoparticles and CdSe/ZnS quantum dots（QDs） into hyper-crosslinked microporous polymer micro- spheres（HCMPs） via the in situ coprecipitation method and swelling-diffusion. The HCMPs predominantly have mi- cropores, and their specific surface area is as high as 703.4 m2/g. The magnetic-fluorescent microspheres maintain the superparamagnetic behavior of Fe304, and the saturation magnetization reaches 38.6 A.m2/kg. Moreover, the composite microspheres exhibit an intense emission peak at 530 nm and achieve good fluorescence.Microporous microspheres can be used as functional nanomaterial carriers for their microporous structure and higher specific surface area. In this study, magnetic fluorescent polymer microspheres were prepared by incorporating Fe304 nanoparticles and CdSe/ZnS quantum dots（QDs） into hyper-crosslinked microporous polymer micro- spheres（HCMPs） via the in situ coprecipitation method and swelling-diffusion. The HCMPs predominantly have mi- cropores, and their specific surface area is as high as 703.4 m2/g. The magnetic-fluorescent microspheres maintain the superparamagnetic behavior of Fe304, and the saturation magnetization reaches 38.6 A.m2/kg. Moreover, the composite microspheres exhibit an intense emission peak at 530 nm and achieve good fluorescence.

关 键 词：Microporous polymer Magnetic-fluorescent polymer microsphere Hyper-crosslinking SUPERPARAMAGNETISM Quantum dot 

分 类 号：O484.43[理学—固体物理] TD462.2[理学—物理]