Process for the preparation of aliphatic polycarbonates

Details Process for the preparation of aliphatic polycarbonates Process for the preparation of aliphatic polycarbonates

C - Chemistry, Metallurgy

08

G

402/180

C08G 64/30 (2006.01) C08G 64/02 (2006.01)

Patent

CA 1303286

Process for the preparation of aliphatic polycarbonates Abstract Process for the preparation of aliphatic polycar- bonates by polymerizing cyclic aliphatic carbonates in the presence of initiators and/or catalysts, in which the initiators used are alkoxysilanes of the formula I Image in which R1, R2 and R3 independently of one another represent a C1-C4-alkyl radical, n is an integer from 1 to 6 and R4 denotes an n-valent, optionally substituted, aliphatic hydrocarbon radical, and the catalysts used are the nucleophilic catalysts which are known from group transfer polymerization. Le A 25 268-Foreign countries

571731

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