| 摘要 |
PCT No. PCT/JP96/03658 Sec. 371 Date Sep. 19, 1997 Sec. 102(e) Date Sep. 19, 1997 PCT Filed Dec. 13, 1996 PCT Pub. No. WO97/22650 PCT Pub. Date Jun. 26, 1997Disclosed is a method for producing an aromatic polycarbonate which comprises subjecting to a transesterification reaction in a polymerizer at least one polymerizable material selected from a molten monomer mixture of an aromatic dihydroxy compound and a diaryl carbonate, and a molten prepolymer obtained from the monomer mixture, wherein a liquid mass of polymerizable material being transesterified in the polymerizer has an exposed surface, and wherein the transesterification reaction of the liquid mass of polymerizable material is performed under reaction conditions such that the following formula (1) is satisfied:log (S/V)>/=2x10-5x+E,ovs M+EE n+0.8(1)wherein S represents an evaporation surface area (m2) which is defined as the area (m2) of the exposed surface of the liquid mass of polymerizable material; V represents the volume (m3) of the liquid mass of polymerizable material in the polymerizer; and +E,ovs M+EE n represents the number average molecular weight of the aromatic polycarbonate to be produced.
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