| 摘要 |
PURPOSE:To inexpensively and efficiently produce polymer particles suitable for a diagnosing reagent, having hydrophobic particle surface and improved dispersion stability in an aqueous medium, by polymerizing a specific hydrophobic vinyl monomer under a specific condition. CONSTITUTION:A hydrophobic vinyl monomer (e.g. styrene, vinyltoluene, methyl methacrylate, etc.) which has solubility of <=3pts.wt. in 100pts.wt. water and provides a polymer having >=40 deg.C glass transition temperature is polymerized with glycidyl (meth)acrylate in the presence of an emulsifying agent (e.g. sodium oleate, etc.) and a water-soluble radical initiator (preferably redox catalyst) in an aqueous medium and in the presence of the prepared polymer is polymerized the hydrophobic vinyl monomer. EFFECT:A diagnosing reagent comprising the prepared particles as a carrier will not aggregate nonspecifically and as improved sharpness.
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