Lipase catalyzed copolymerization of the monomers lactide and glycolide by Pseudomonas cepacia employing a molar ratio of 80L/20G has been studied. The copolymers were characterized by MALDI-ToF-MS, DSC, SEC and NMR. MALDI-ToF-MS has successfully been used not only to determine end groups and chemical composition but even the microstructure of the copolymers. We demonstrated that for this lipase catalyzed copolymerization, the main product of the reaction at 100 degrees C was linear homopolymer of lactide while at 130 degrees C the main product was cyclic random copolymer.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/bm060466v | DOI Listing |
Publication Analysis
Top Keywords
lipase catalyzed
8
catalyzed copolymerization
8
main product
8
topology characterization
4
characterization maldi-tof-ms
4
maldi-tof-ms enzymatically
4
enzymatically synthesized
4
synthesized polylactide-co-glycolide
4
polylactide-co-glycolide lipase
4
copolymerization monomers
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!