PROCESS FOR MANUFACTURING POLYCARBONATE FROM DIANHYDROHEXITOL DIALKYLCARBONATE

摘要

The invention relates to a process for manufacturing a polycarbonate, having a glass transition temperature greater than or equal to 50°C, comprising: ¦ a step (1) of introducing into a reactor a monomer of formula (I) and R1 and R2 being identical or different alkyl groups; ¦ a step (2) of introducing into the reactor at least one cyclic diol or a mixture of diols (B) comprising at least 20 mol% of cyclic diols; ¦ a subsequent step (3) of polycondensation via transesterification of the mixture of monomers comprising the monomers (A) and (B); ¦ a step (4) of recovering the polycarbonate formed during step (3).