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- Title
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
- 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]/LiOiPr and [LMCl2]/LiMe (M = Co, Cu) resulted in over 95% conversion within 10 min at 25 °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 (Pr = 0.92) with 98% conversion at 0 °C.
- Subjects
RING-opening polymerization; COBALT; COPPER; POLYLACTIC acid; METAL complexes; MORPHOLINE
- Publication
Bulletin of the Korean Chemical Society, 2024, Vol 45, Issue 4, p317
- ISSN
0253-2964
- Publication type
Article
- DOI
10.1002/bkcs.12828