Halogen-free solvent for oxidative carbonylation of bisphenol A to polycarbonate

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Abstract

Halogen-free solvents for oxidative carbonylation of bisphenol A to polycarbonate using carbon monoxide were investigated. Tetrahydorofuran, γ-butyrolacton, and acetophenone, which dissolve both bisphenol A and polycarbonate, gave a polycarbonate yield that was lower than using a halogenated solvent of dichloromethane. On the other hand, propylene carbonate that has a carbonate bond gave a polycarbonate yield the same as using dichloromethane. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007

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