Highly active cobalt(II) and copper(II) complexes supported by aminomethylquinoline mediating stereoselective ring-opening polymerization of rac-lactide

被引：1
|
作者：
Lee, Jaegyeong [1 ,2 ]
Nayab, Saira [1 ,2 ,3 ]
Kumar, Ameet [1 ,2 ]
Kim, Dongil [1 ,2 ]
Jung, Hyewon [4 ]
Lee, Sang-Ho [4 ,5 ]
Cho, Daeheum [1 ,2 ]
Lee, Hyosun [1 ,2 ]
机构：
[1] Kyungpook Natl Univ, Dept Chem, 80 Daehakro, Daegu 41566, South Korea
[2] Kyungpook Natl Univ, Green Nano Mat Res Ctr, 80 Daehakro, Daegu 41566, South Korea
[3] Shaheed Benazir Bhutto Univ SBBU, Dept Chem, Khyber Pakhtunkhwa, Pakistan
[4] Dongguk Univ, Dept Chem & Biochem Engn, Seoul, South Korea
[5] Korea Res Inst Chem Technol, Ctr Adv Specialty Chem, Ulsan 44412, South Korea
来源：
BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2024年 / 45卷 / 04期
关键词：
aminomethylquinoline; cobalt-complex; copper-complex; heterotactic PLA; ring-opening polymerization; METHYL-METHACRYLATE; STRUCTURAL-CHARACTERIZATION; LIGANDS; DERIVATIVES; CU(II); PRECATALYSTS; MAGNESIUM; ZINC(II); ZN(II);
D O I：
10.1002/bkcs.12828
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
引用
收藏
页码：317 / 321
页数：5
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