| 摘要 |
PROBLEM TO BE SOLVED: To provide porous silica-polymer composite particles which can be used in a catalyst carrier, an adsorbent, a sustained-release material, a low-refractivity material, and the like, and can be uniformly dispersed into a solvent prepared by using a crosslinked resin having a void as a nucleus.SOLUTION: A silica-copolymer crosslinked composite body with a diameter of 20-500 nm has a particle aggregate of colloidal silica with a primary particle size of 3-30 nm supported by a spherical crosslinked resin, which is formed of a block copolymer represented by the following formula (1): HO(CHCHO)(CHCH(CH)O)(CHCHO)H and tris-hydroxyaminomethane and has a void, as an outer shell, by using the crosslinked resin as a nucleus. |
