Production of Vinyl Polymer Beads by Nitroxide Free Radical and Rate-Acceleration Agent

摘要

The present invention is a method of producing a nitroxide free radical agent and a vinyl polymer beads with a reaction rate enhancer relates to , as more specifically that incorporate the free-radical polymerization in dispersion polymerization method , the polymerization reaction was completely dissolved by using a polyhydric alcohol as a dispersion medium shorten the polymerization time, by using a particular choice of solid stabilizer thereby forming and maintaining the polymer particles in spherical , nitroxide free radical agent and an aromatic sulfonic acid as a reaction rate enhancer selected specific reaction conditions used in the polymerization to a molecular weight distribution (PDI) is the particle size to a narrow range , yet forms It relates to a process for producing a vinyl-based polymer beads of uniform spherical to several tens of nm to several .