Ring-Opening Polymerization of l-Lactide and ε-Caprolactone Utilizing Biocompatible Zinc Catalysts. Random Copolymerization of l-Lactide and ε-Caprolactone
Abstract
Polylactide and polycaprolactone were synthesized utilizing biocompatible zinc complexes as initiators at ambient temperature in “controlled”/“living” polymerization processes. The zinc complex containing a Schiff base ligand derived from the natural amino acid phenylalanine was found to catalyze the ring-opening polymerization of l -lactide and ε-caprolactone in the melt at 110 °C to afford a series of random copolymers. These copolymers were shown to possess monomer contents which correlated well with their composition in the monomer feed. The thermal properties of the various copolymers ( T g, T c, and T m ) as determined by differential scanning calorimetry were found to depend strongly on the copolymers’ composition. For example, the T g s were shown to vary linearly with the molar % lactide in the copolymer over a temperature range of −67 to 60 °C.
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- Authors
- Darensbourg, D. J., & Karroonnirun, O.
- Affiliations
- Texas A&M University (US)
- Corresponding author
- Darensbourg, Donald J.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-10-12
- Volume
- 43
- Issue
- 21
- Pages
- 8880-8886
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W1675109013
- Cited by
- 178
- References
- 39
- Citations by year
- 2026: 10 · 2025: 5 · 2024: 5 · 2023: 9 · 2022: 11 · 2021: 9 · 2020: 5 · 2019: 10 · 2018: 7 · 2017: 16 · 2016: 18 · 2015: 16 · 2014: 21 · 2013: 14 · 2012: 16
- FWCI
- 4.74
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Macromolecules (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Carbon dioxide utilization in catalysis
- Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
- Keywords
- ring-opening polymerization, L-lactide, ε-caprolactone, polylactic acid, polycaprolactone, zinc catalyst, Schiff base ligands, phenylalanine, random copolymerization, living polymerization, copolymer composition, glass transition temperature, thermal properties
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