| 摘要 |
PURPOSE:To provide the titled composite obtained by the graft polymerization of N-vinylcarbazole, etc. to ferrite, having excellent moldability, high dispersibility in solvent, etc., and the original characteristics of ferrite, and suitable as a magnetic material or a material to absorb electrical radiation, etc. CONSTITUTION:The objective composite can be obtained by the graft polymeriza tion of N-vinylcarbazole or its mixture with other vinyl monomer [e.g. alkyl (meth)acrylate, acrylonitrile, etc.] to a ferrite of formula MFe2O3 (M is bivalent metallic ion such as Zn, Mn, Co, Ni, Ba, etc.) (preferably having a particle diameter of <=100mu), if necessary in the presence of a solvent such as toluene.
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