| abstract |
(57) [Summary] [Object] The present invention provides a high-molecular-weight polycarbonate that is not colored, does not contain chlorine ions that cause coloring, and has a degree of branching suitable for the production of hollow molded articles and the like. Provide a manufacturing method. When a polycarbonate is produced from a dihydric phenol such as bisphenol A and a carbonic acid diester such as diphenyl carbonate by a transesterification reaction in the presence of a catalyst, a polyfunctional organic compound is used as a branching agent, Further, a nitrogen-containing basic compound is used as a catalyst. [Effects] According to the method of the present invention, the transesterification reaction between the dihydric phenol and the carbonic acid diester is carried out in the presence of a specific catalyst, so that chlorine ion which causes coloring is not contained and hollow molding products such as A polycarbonate with a specific degree of branching suitable for production is obtained. |