PROCESS FOR PRODUCING POLYMER MICROPARTICLES

摘要

Disclosed is a process for producing polymer microparticles having a narrow particle size distribution with high efficiency.  The process utilizes a dispersion stabilizer comprising a macromonomer having a carboxyl group and an ethylenically unsaturated group in the middle of the molecule chain thereof.  The process comprises a step of polymerizing a vinyl monomer in the presence of the dispersion stabilizer in a hydrophilic solvent that can dissolve the vinyl monomer and the dispersion stabilizer but cannot dissolve a polymer produced by the process.