Preparation method of high molecular weight polycarbonate resin

摘要

The present invention relates to a method for the preparation of a high molecular weight polycarbonate resin, and more particularly to a method for preparing a high molecular weight polycarbonate resin using a solid state polymerization method after the preparation of a crystalline polycarbonate or-conducting the preparation of the crystalline polycarbonate and the solid state polymerization thereof simultaneously. According to the method for the preparation of a high molecular weight polycarbonate resin of the invention, it is possible to produce a high molecular weight polycarbonate resin having a narrow molecular weight distribution and uniform properties and that is applicable to injection and extrusion in large quantities with a low cost within a short time.