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Stereoselective Ring-Opening Polymerization of Racemic Lactide Using Aluminum-Achiral Ligand Complexes: Exploration of a Chain-End Control Mechanism
Abstract
Stereoselective polymerization of racemic lactide (rac-LA) was examined using Al-achiral ligand complexes. By introduction of substituents in aromatic rings of Schiff base ligands, a higher selectivity was obtained without any chiral auxiliaries in the catalyst via a chain-end control mechanism. The T(m) values (T(m) 170-192 degrees C) were comparable to or higher than that of homochiral polymer, poly(L-LA) (T(m) 162 degrees C), and a thermally more stable polylactide than poly(L-LA) was prepared from rac-LA.
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Metadata
- Authors
- Nomura, N., Ishii, R., Akakura, M., & Aoi, K.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-05-01
- Volume
- 124
- Issue
- 21
- Pages
- 5938-5939
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2047814327
- Cited by
- 478
- References
- 3
- FWCI
- 8.72
- Type
- journal article
- Language
- en
- Open access
- closed
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