Synthesis of polycarbonates

Details Synthesis of polycarbonates Synthesis of polycarbonates

C - Chemistry, Metallurgy

08

G

402/178

C08G 63/62 (1980.01)

Patent

CA 1188846

SYNTHESIS OF POLYCARBONATES ABSTRACT OF THE DISCLOSURE Polycarbonates are formed by the interaction of a bisphenol, carbon monoxide, and oxygen. The initial poly- carbonate product is an oligomer which, upon heat treatment, polymerizes to a high molecular weight polycarbonate. The products produced according to the present invention are chain- stopped prior to heat treatment, making them less thermally and oxidatively sensitive.

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