| abstract |
A high Tg, high molecular weight polycarbonate resin is provided. A polycarbonate resin obtained by carbonate-bonding 1,4-cyclohexanedimethanol with diphenyl carbonate. 1,4-cyclohexanedimethanol and diphenyl carbonate are mixed in the presence of a basic compound catalyst or a transesterification catalyst or a mixed catalyst comprising both, and the molar ratio of diphenyl carbonate and 1,4-cyclohexanedimethanol is 0.97. ˜1.01 is produced by a melt polycondensation method of two or more stages. [Selection figure] None |