| abstract |
PROBLEM TO BE SOLVED: To provide a method for producing a stabilized polycarbonate having excellent color tone and a small amount of residual phenol. SOLUTION: The present invention relates to a method for producing an aromatic polycarbonate by melt-polycondensing an aromatic dihydroxy compound and diphenyl carbonate, wherein after the intrinsic viscosity of the polycarbonate reaches at least 0.3 dl / g, the following formula ( 1) Wherein R 1 is a chlorine atom, a methoxycarbonyl group or an ethoxycarbonyl group, and R 2 is Alkyl group having 30 to 30 carbon atoms, alkoxyl group having 1 to 30 carbon atoms, aryl group having 6 to 30 carbon atoms or 6 to 30 carbon atoms A terminal blocked polycarbonate having a change in intrinsic viscosity within 0.1 dl / g based on the intrinsic viscosity at the time of addition. This is a method for producing a closed polycarbonate. |