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Highly active cobalt(II) and copper(II) complexes supported by aminomethylquinoline mediating stereoselective ring-opening polymerization of rac-lactide
- Authors
- Lee, Jaegyeong; Nayab, Saira; Kumar, Ameet; Kim, Dongil; Jung, Hyewon; Lee, Sang-Ho; Cho, Daeheum; Lee, Hyosun
- Issue Date
- Apr-2024
- Publisher
- 대한화학회
- Keywords
- aminomethylquinoline; cobalt-complex; copper-complex; heterotactic PLA; ring-opening polymerization
- Citation
- Bulletin of the Korean Chemical Society, v.45, no.4, pp 317 - 321
- Pages
- 5
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Bulletin of the Korean Chemical Society
- Volume
- 45
- Number
- 4
- Start Page
- 317
- End Page
- 321
- ISSN
- 0253-2964
1229-5949
- Abstract
- Cobalt(II) and copper(II) complexes supported by 4-(quinolin-2-ylmethyl)morpholine (L) were characterized, and their reactivity toward the ring-opening polymerization (ROP) of rac-lactide (rac-LA) was studied. The use of [LMCl2]/(LiOPr)-Pr-i and [LMCl2]/LiMe (M = Co, Cu) resulted in over 95% conversion within 10 min at 25 degrees C. The effect of the initiating group and geometry of the metal complexes steered the heterotactic enchainment of the resultant polylactide(PLA). The Co(II)/LiMe system represents the first example of the ROP of rac-LA with high heterotactic enchainment (P-r = 0.92) with 98% conversion at 0 degrees C.
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Related Researcher
- Lee, Sang Ho
- College of Engineering (Department of Chemical and Biochemical Engineering)