Preparation of Large Magnetic Polymer Microspheres

Chinese Journal of Applied Chemistry ›› 1997, Vol. 0 ›› Issue (5): 74-76.

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Preparation of Large Magnetic Polymer Microspheres

Qiu Guangming¹, Qiu Guangliang²

1. College of Electric Power, Inner Mogolia University of Technology, Huhhot;
2. Department of Biology, Inner Mogolia Nomal University, Huhhot 010030

Received:1996-11-25 Revised:1997-06-11 Published:1997-10-10 Online:1997-10-10

Abstract

Abstract: Copolymerization of styrene and acrylic acid in ethanol-water medium dispersed with magnetite particles of 30 nm diameter was carried out using potassium persulfate as initiator. The affinity among the magnetite particles, monomers and initiators was improved by coating the magnetite particles with polyethylene glycol. The effects of polyethylene glycol, dispersion medium, initiator and polymerization time on the formation of magnetic polymer microspheres have been investigated. Magnetic polymer microspheres of 30～1000 μm diameter were prepared.

Key words: polymeric magnetic microsphere, styrene, acrylic acid, copolymer, preparation

Qiu Guangming,Qiu Guangliang. Preparation of Large Magnetic Polymer Microspheres[J]. Chinese Journal of Applied Chemistry, 1997, 0(5): 74-76.

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Preparation of Large Magnetic Polymer Microspheres

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