| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for stably producing polymer particles having≥1μm average particle diameter, a narrow particle size distribution of≤10% variation coefficient and a uniform particle diameter. SOLUTION: The method for producing polymer particles comprises dispersing polymerizable monomer in an aqueous medium dissolving a water soluble polymer such as polyvinylpyrrolidone and a water-soluble radical polymerization initiator having ionic functional group, and performing soap-free polymerization. Thereby, polymer particles having≥1μm average particle diameter, narrow particle size distribution and a uniform particle diameter are obtained. COPYRIGHT: (C)2008,JPO&INPIT
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