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- W4379616441 abstract "Polymerization of biodegradable lactide and lactone has been the subject of intense research during the past decade. We used density functional theory (DFT) calculations to investigate the initiation and first propagation for ring-opening polymerization (ROP) mechanisms of L-lactide (LA) and ε-caprolactone (CL) on aluminum complexes bearing the bis(phenoxy)-amine ligand with pyridine (Catalyst I) and diethylamine (Catalyst II) sidearm. Here, the ROP mechanisms of LA and CL on both catalysts were classified into 3 parts: (1) LA homopolymerization, (2) CL homopolymerization, and (3) LA and CL copolymerization. For homopolymerization, Catalyst I shows a greater performance than Catalyst II on both LA and CL due to its less bulky sidearm. However, CL homopolymerization on Catalyst I is more favorable than that of LA, which is caused by the stronger CL coordination on the catalyst. For LA and CL copolymerization, the amine sidearm variation and the vdW interactions of monomers on Catalysts I and II provide different copolymer products, the tapered and random copolymers, respectively. These calculated results are in good agreement with our previous experimental reports. The understanding gained in the current study might be helpful in the development of high-performance catalysts for the ROP reaction of biodegradable lactide and lactone." @default.
- W4379616441 created "2023-06-08" @default.
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- W4379616441 date "2023-07-01" @default.
- W4379616441 modified "2023-09-28" @default.
- W4379616441 title "A mechanistic study on homo- and copolymerization of L-Lactide and ε-caprolactone catalyzed by an aluminum complex bearing a Bis(phenoxy)amine ligand: A DFT study" @default.
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- W4379616441 doi "https://doi.org/10.1016/j.polymer.2023.126065" @default.
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