Ring-opening polymerization of L-lactide with rare earth aryloxides substituted by various alkyl groups
✍ Scribed by Yan Wang; Li-fang Zhang; Pei Wang; Li-juan Shen
- Book ID
- 106280673
- Publisher
- Institute of Chemistry Chinese Academy of Sciences
- Year
- 2010
- Tongue
- English
- Weight
- 434 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0256-7679
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## Abstract A variety of single component rare earth aryloxides substituted by various alkyl groups [Ln(OAr)~3~] such as methyl, isopropyl, __tert__‐butyl have been surveyed in the ring‐opening copolymerization of 2,2‐dimethyltrimethylene carbonate (DTC) and __ε__‐caprolactone (__ε__‐CL). It was wo
Ring-opening polymerization of lactone and lactide have been initiated with rare earth organoacid compounds, such as lanthanum acetate in bulk. The polymerization mechanism is in agreement with the "nonionic-coordination-insertion" mechanism, which involves the selective cleavage of the acyl-oxygen