Synthesis of hollow fluorescent polymeric microspheres with movable magnetic cores

被引：15
|
作者：
Liu, Bin [1 ]
Yang, Xinlin [1 ]
Ji, Hongfen [1 ]
机构：
[1] Nankai Univ, Key Lab Funct Polymer Mat, Minist Educ, Inst Polymer Chem, Tianjin 300071, Peoples R China
来源：
POLYMER INTERNATIONAL | 2010年 / 59卷 / 07期
基金：
中国国家自然科学基金;
关键词：
hollow fluorescent polymer microspheres; movable magnetic core; distillation precipitation polymerization; QUANTUM DOTS; FACILE SYNTHESIS; CELL-SEPARATION; NANOPARTICLES; PARTICLES; COMPOSITE; FUNCTIONALITIES; NANOSPHERES; GEL;
D O I：
10.1002/pi.2813
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Low-dispersity hollow poly[(ethyleneglycol dimethacrylate)-co-(N-vinylcarbazole)] (P(EGDMA-co-NVCz)) fluorescent microspheres with movable magnetic cores were prepared by quantitative removal of the silica component in hydrofluoric acid aqueous solution from the corresponding magnetite/silica/P(EGDMA-co-NVCz) tri-layer hybrid microspheres. The tri-layer microspheres with magnetic cores and fluorescent polymer shells were synthesized by distillation precipitation copolymerization of ethyleneglycol dimethacrylate crosslinker and N-vinylcarbazole fluorescent monomer in acetonitrile in the presence of 3-(methacryloxy)propyltrimethoxysilane-modified magnetite/silica particles as seeds, which were afforded by a modified Stober sol-gel process, to coat the magnetite cores. The corresponding hollow fluorescent polymer microspheres with movable magnetic cores were studied using transmission electron microscopy, Fourier transform infrared spectroscopy, vibrating sample magnetometry, UV-visible spectroscopy and fluorescence spectroscopy. (C) 2010 Society of Chemical Industry
引用
收藏
页码：961 / 966
页数：6
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