KEIDS5-1676
REMP Grubbs Catalysts for Cyclic Polymer Synthesis
Topic
IDS5. Frontiers in Advanced Polymeric Materials (Sponsored by Toray Science Foundation)
When and Where
Sep 29, 2026
15:25 - 15:50
Room 105
Session Chairs
Kang Hee Ku
Presenter(s)
Eunsung Lee (Seoul National University)
Co-Author(s)
Abstract
Cyclic polymers are gaining interest as novel materials with distinct properties compared to linear polymers. Industrial-scale control of their molecular weight and dispersion poses challenges. Cyclic (alkyl)(amino)carbene (cAAC) ligands are promising catalysts for olefin metathesis, and we present a successful cAAC-based ring-expansion metathesis polymerization (REMP) catalyst. A notable feature is its effortless optimization of the polymerization by adjusting the alkyl chain length. Moreover, it remains stable in ambient air, facilitating easy handling during polymerization.
1. Yang, Y.; Jang, M.; Kang, H.; Choe, S.; Lee, E.; Choi, T.-L. Angew. Chem. Int. Ed. 2025, 64, e202425648.
2. Jang, M.; Jung, E.; Yang, Y.; Noh, J.; Song, H.; Kim, H.; Kang, H.; Choe, S.; Choi, T.-L.; Lee, E. J. Am. Chem. Soc. 2025, 147, 2571. 
