| 摘要 |
<p>Disclosed is a method for manufacturing single-hole hollow polymer microparticles having extremely uniform inner and outer diameters without the need for a sorting process. Also disclosed are the single-hole hollow polymer microparticles manufactured using said method. Said method includes: a step in which a seed-particle dispersion liquid, in which seed particles containing a non-crosslinked polymer are dispersed in a water-containing dispersion medium, is mixed with a radically polymerizable monomer, an oil-soluble solvent, and an oil-soluble polymerization initiator, causing the seed particles to absorb the radically polymerizable monomer, the oil-soluble solvent, and the oil-soluble polymerization initiator, yielding a liquid dispersion of swollen particle droplets; and a step in which the radically polymerizable monomer in said swollen particle droplets is polymerized. The relationship between the SP value (SPp) of the polymer obtained by polymerizing said radically polymerizable monomer and the SP value (SPs) of the aforementioned oil-soluble solvent satisfies equation (1). (1) 2.1 = SPp - SPs = 7.0</p> |
