| abstract |
A polycarbonate resin having an improved hue is provided, which is suitable for use as a substrate for transfer type optical recording media such as optical disks.The polycarbonate resin is one obtained by reacting starting materials comprising a dihydric phenol, a carbonate material, and a chain terminator comprising a p-(long chain)-substituted phenol (hereinafter referred to as a para isomer), characterized in that the amount of an o-(long chain)-substituted phenol (hereinafter referred to as an ortho isomer) contained as an impurity in the chain terminator used satisfies the following relationship:(wherein "number of C's" represents the number of carbon atoms in the substituent organic group of the substituted phenols). |