| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily produce fine polymer particles having a narrow particle size distribution. <P>SOLUTION: A method for producing fine polymer particles comprises the steps of: dissolving and mixing a polymer A and a polymer B in an organic solvent to form an emulsion which is separated into two phases, namely, a polymer A-based solution phase and a polymer B-based solution phase; and bringing a poor solvent for the polymer A into contact with the emulsion to precipitate the polymer A. This method can allow fine polymer particles having the narrow particle size distribution to be synthesized easily and can be applied effectively to production of a highly heat-resistant polymer which is hardly produced until now. <P>COPYRIGHT: (C)2013,JPO&INPIT |
