POROUS HOLLOW TYPE MICROSPHERES CAPABLE OF EFFECTIVELY CONTROLLING POROSITY AND POROUS STRUCTURE THROUGH A CONTROL OF CONCENTRATION OF A BIODEGRADABLE POLYMER, AND A MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A porous hollow type microspheres is provided to facilitate production of porous hollow particles with high porosity and wide surface area of inside.;CONSTITUTION: A manufacturing method of porous hollow type microspheres comprises: a step of manufacturing a mixed solution by dissolving a biodegradable polymer in an organic solvent; and a step of generating porous hollow particles by dispersing the mixed solution in a solvent; and additionally, a step of obtaining the generated porous hollow particles through a filtering. The organic solvent is one selected from o-xylene, m-xylene, p-xylene, and a mixture thereof. The average particle diameter of the porous hollow particles is 100-200 micron.;COPYRIGHT KIPO 2013