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首页> 外文期刊>Journal of Materials Science >Properties of magnetic poly(glycidyl methacrylate) and poly( N -isopropylacrylamide) microspheres
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Properties of magnetic poly(glycidyl methacrylate) and poly( N -isopropylacrylamide) microspheres

机译:磁性聚甲基丙烯酸缩水甘油酯和聚N-异丙基丙烯酰胺微球的性质

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摘要

Iron oxide colloids were prepared by coprecipitation of Fe(II) and Fe(III) salts in alkaline media and stabilized by perchloric acid, oleic acid, or poly(acrylic acid). In an attempt to obtain magnetic polymer microspheres differing in size, dispersion polymerization of glycidyl methacrylate (GMA) in ethanol containing HClO4-stabilized magnetite, dispersion copolymerization of GMA and 2-hydroxyethyl methacrylate (HEMA) in toluene/2-methylpropan-1-ol mixture in the presence of oleic acid-coated magnetite, and inverse suspension copolymerization of N-isopropylacrylamide (NIPAAm) and N,N′-methylenebisacrylamide (MBAAm) in cyclohexane in the presence of poly(acrylic acid)-coated maghemite were compared. The microspheres were characterized by morphology, size, polydispersity, and some magnetic properties.
机译:氧化铁胶体是通过在碱性介质中共沉淀Fe(II)和Fe(III)盐制备的,并用高氯酸,油酸或聚丙烯酸稳定。为了获得尺寸不同的磁性聚合物微球,甲基丙烯酸缩水甘油酯(GMA)在含HClO 4 稳定的磁铁矿的乙醇中的分散聚合,GMA和甲基丙烯酸2-羟乙酯(HEMA)在甲苯中的分散共聚/ 2-甲基丙烷-1-醇混合物在油酸涂层磁铁矿的存在下,在聚丙烯酸存在下,N-异丙基丙烯酰胺(NIPAAm)和N,N'-亚甲基双丙烯酰胺(MBAAm)在环己烷中反相悬浮共聚比较了)包被的磁赤铁矿。微球的特征是形态,尺寸,多分散性和某些磁性。

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