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Citation: Qiu Guangming. Synthesis of Nanosize Magnetic Microspheres from Fe₃O₄ and Poly(styrene-acrolein)[J]. Chinese Journal of Applied Chemistry, ;1999, 16(6): 46-49. shu

Synthesis of Nanosize Magnetic Microspheres from Fe₃O₄ and Poly(styrene-acrolein)

Qiu Guangming

1.
Electric Power College, Inner Mongolia University of Technology, Huhhot 010080

Received Date: 6 May 1999
Available Online: 9 August 1999
Fund Project:

The reactive magnetic microspheres with magnetic core and aldehyde groups on surface were prepared by copolymerization of styrene(St) and acrolein(Ac) in an alcohol/water dispersion medium in the presence of magnetite(Fe₃O₄) particles wrapped up in polyethylene glycol.The composite microspheres have diameters of 1-5μm, with surface aldehyde groups of 0.9-1.52 mmol/g and Fe₃O₄ content of 0.9-10.0 mg/g.They showed better magnetic responsibility and excellent monodispersity.The effects of the content of magnetite particle, comonomer, initiator and V(EtOH)/V(H₂O) ratio, molar ratio of Ac to St on the preparation have been investigated.
- magnetic iron oxide,
- nanosize magnetic particle,
- styrene-acrolein copolymer,
- Preparation
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Synthesis of Nanosize Magnetic Microspheres from Fe₃O₄ and Poly(styrene-acrolein)