Polymerization of ε-Caprolactone Using a Ruthenium(II) Mixed Metallocene Catalyst
Aliphatic polyesters, prepared by ring opening polymerization (ROP) of lactones, are versatile polymers with good mechanical properties, hydrolyzability, biocompatibility and biodegradabil- ity that make them quite suitable for medical and environmental applications. The objective of this work is th...
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| Other Authors: | , , , |
| Format: | bookPart |
| Language: | eng |
| Published: |
2017
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10174/20916 |
| Country: | Portugal |
| Oai: | oai:dspace.uevora.pt:10174/20916 |
| Summary: | Aliphatic polyesters, prepared by ring opening polymerization (ROP) of lactones, are versatile polymers with good mechanical properties, hydrolyzability, biocompatibility and biodegradabil- ity that make them quite suitable for medical and environmental applications. The objective of this work is the ROP of ε-caprolactone via the activated monomer mecha- nism (using isopropyl alcohol as an initiator and a ruthenium(ii) mixed metallocene catalyst).This polymerization is quantitative and occurs in a controlled manner, yielding a product with a dispersity (Đ) in the range 1.1–1.3. The ruthenium catalyst is exceptionally stable under the experimental conditions and can be recovered at the end of the reaction. |
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