Star-shaped hydroxyacid polymers

Details Star-shaped hydroxyacid polymers Star-shaped hydroxyacid polymers

C - Chemistry, Metallurgy

08

G

C08G 63/08 (2006.01)

Patent

CA 2155862

Star-shaped poly (hydroxyacid) chains and the process for preparing them are disclosed. The star-shaped polymers have the residue of a central polyfunctional compound having at least 5 hydroxyl or amino groups and 5 to 100 carbon atoms with polymeric arms attached to the functional groups. The polymeric arms are formed from lactide, glycolide or caprolactone. In a preferred aspect the inner segment of the arms are an amorphous of D-lactide and L-lactide and the outer segment of the arms are a semicrystalline polymer of one of L-lactide or D-lactide.

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