Synthesis of the Mono-Disperse Magnetic Cross-Linked Composite Micro-Spheres Containing the Functional Group

Abstract:

The mono-disperse magnetic cross-linked composite micro-spheres containing carboxyl groups have been prepared by an improving method of emulsion polymerization in this paper. Firstly, Fe₃O₄ magnetic nanoparticles were synthesized by co-precipitation, and the Fe₃O₄ magnetic nanoparticles were modified by oleic acid. Secondly, DVB as cross-linker, SDBS as emulsifier and AIBN as initiator, the mono-disperse magnetic cross-linked composite micro-spheres were obtained in aqueous, and consisted of the copolymer of styrene and acrylic acid as shell and the Fe₃O₄ magnetic nanoparticles as core. The magnetic cross-linked micro-spheres would be the rudiment of the magnetic nanonetwork, and be expected to apply a great deal of fields in the future.

• Periodical: Applied Mechanics and Materials (Volume 440)
• Pages: 50-53
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.440.50
• Online since: October 2013
• Authors: Ji Li Zhao*, Rong Yin
• Keywords: Composite Micro-Spheres, Cross-Linked, Magnetic, Mono-Disperse

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