Alkylperoxyformate-terminated polycarbonates and their...

C - Chemistry – Metallurgy – 08 – G

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C08G 64/00 (2006.01) C08G 64/02 (2006.01) C08G 64/14 (2006.01) C08G 64/24 (2006.01) C08G 64/28 (2006.01)

Patent

CA 2017475

RD-19732 ALKYLPEROXYFORMATE-TERMINATED POLYCARBONATES AND THEIR CONVERSION TO HYDROXY-TERMINATED POLYCARBONATES Abstract Alkylperoxyformate-terminated polycarbonates are prepared by the reaction of an aromatic dihydroxy compound, preferably a bisphenol, with phosgene in one or two steps, in the presence of an alkyl-hydroperoxide such as t-butyl or 2-phenyl-2-propyl hydroperoxide. The alkylperoxyformate-terminated polycarbonate may be converted to hydroxy-terminated polycarbonate by heating in the melt.

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