Aliphatic polyesters containing thioester linkages were enzymatically prepared by both the copolymerization of lactone with mercaptoalkanoic acid and by the transesterification of polyesters with mercaptoalkanoic acids. The enzymatic copolymerization of ε-caprolactone with 11mercaptoundecanoic acid (11MU) and 3-mercaptopropionic acid (3MP) was performed under reduced pressure using an immobilized lipase from Candida antarctica (CA). The transesterification of poly(ε-caprolactone) and poly[(R)-3hydroxybutyrate] was carried out with 11MU and 3MP using lipase CA under reduced pressure.
- Lipase-catalyzed polymerization
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry