Patent ID: 8071691

Claim:
A furanone endcapped polymer comprising a polymer comprising one or more monomers selected from the group consisting of lactide, glycolide, trimethylene carbonate, tetramethylene carbonate, dimethyl trimethylene carbonate, dioxanone, dioxepanone, caprolactone, valerolactone, and combinations thereof, endcapped with a furanone of the formula: wherein R 2 , R 3 and R 4 are independently or all H, halogen, hydroxyl, or acetate, â€œâ•â€ represents a double bond, and X is a moiety selected from the group consisting of H, halogen, formyl, carboxyl, cyano, ester, amide, alkyl, alkoxy, oxoalkyl, alkenyl, alkynyl, aryl or arylalkyl, which moiety may optionally be substituted with one or more substituents or interrupted by one or more hetero atoms.