林产化学与工业Issue(5)：37-44,8.DOI:10.3969/j.issn.0253-2417.2015.05.007
含松香的聚苯乙烯/Fe3 O4磁性微球的制备与表征
Preparation and Characterization of Magnetic Polystyrene/Fe3 O4 Microspheres with Rosin Moiety
摘要
Abstract
Rosin was reacted with 2-hydroxyethyl methacrylate and an ester ( denoted as RH) was formed. Then polymerization was carried out in the presence of oleic acid-modified Fe3 O4 magnetic fluid, with RH and styrene (St) as monomers, divinylbenzene (DVB) as cross-linking monomer, gelatin as dispersant, 2, 2-azobisiso-butyronitrile ( AIBN) as initiator. The magnetic polymer microspheres with rosin moiety were prepared by suspension polymerization and the effect of the magnetic fluid content on the magnetic polymer microspheres was investigated. The structures and properties of the magnetic polymer microspheres were characterized by Fourier transform-infrared spectroscopy, thermogravimetry, X-ray powder diffraction, optical microscopy, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectrometer. Hysteresis loops of the microspheres were tested by magnetic measuring system. The results indicated that at a monomer ratio of m(RH)∶m(St)∶m(DVB) =1∶1. 5∶0. 4, and the amounts of AIBN and gelatin about 1% and 6% of the total monomers, respectively, the products were spherical with high superparamagnetism. When the amount of oleic acid-modified Fe3 O4 increased, the particle sizes of microspheres were gradually increased, the particle size distribution was broadened, and the saturation magnetic intensity increased.关键词
松香/磁性聚合物微球/四氧化三铁/悬浮聚合Key words
rosin/magnetic polymer microspheres/ferroferric oxide/suspension polymerization分类
化学化工引用本文复制引用
余彩莉,任鹏,王孝磊,陈传伟,张发爱..含松香的聚苯乙烯/Fe3 O4磁性微球的制备与表征[J].林产化学与工业,2015,(5):37-44,8.基金项目
国家自然科学基金资助项目(31160148) （31160148）
广西自然科学基金重点项目(2012GXNSFDA053006) （2012GXNSFDA053006）
