| 摘要 |
PURPOSE:To facilitate the formation of hollow polymer particles, by polymerizing a suspension containing a hydrophilic monomer, a crosslinking monomer and an oily substance and removing the oil substance contained within the produced capsular polymer particles. CONSTITUTION:A suspension containing 100pts.wt. monomer component containing 5-70pts.wt. hydrophilic monomer (e.g., vinylpyridine or 2- hydroxyethyl methacrylate) and 1-40pts.wt. crosslinking monomer (e.g., divinylbenzene or ethylene glycol dimethacrylate) and 1-1,000pts.wt. oily substance (e.g., benzene or toluene) is prepared. The monomer component is polymerized by suspension polymerization to produce capsular polymer particles containing the oil substance within their insides. The oily substance contained within them is removed by evaporation to obtain hollow polymer particles suitable as an organic filler or the like. |
