Polymerization of beta-substituted-beta-propiolactones...

Details Polymerization of beta-substituted-beta-propiolactones... Polymerization of beta-substituted-beta-propiolactones...

C - Chemistry, Metallurgy

08

G

C08G 63/08 (2006.01) A61L 15/26 (2006.01) A61L 15/62 (2006.01) C08G 63/82 (2006.01) C08G 63/83 (2006.01) C08J 5/18 (2006.01) C09J 167/04 (2006.01)

Patent

CA 2181794

The present invention relates to a method of preparing a polyester comprising polymerizing at least one .beta.-substituted-.beta.-pnopiolactone in the presence of an initiating amount of alkylzinc alkoxide in bulk or in solvent for a reaction time and temperature sufficient to produce said polyester.

Cette invention se rapporte à un procédé de préparation d'un polyester qui consiste à polymériser au moins une .beta.-propiolactone .beta.-substituée en présence d'une quantité d'alcoxyde d'alkyle-zinc faisant office d'amorce avec ou sans l'adjonction d'un solvant, pendant une période de réaction et à une température de réaction suffisantes pour produire ledit polyester.

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