Co/Mn-based 2D coordination polymers: synthesis, structure and ring opening polymerization

Gong, Yi; Prior, Timothy J.; Redshaw, Carl

Abstract

The two-dimensional coordination polymers [Co(DMF)2L2]∙0.65H2O and [Mn(DMF)2L2]∙0.4H2O (L = N,N′-bis(glycinyl)pyromellitic diimide) have been prepared and structurally characterized by a variety of techniques including FTIR spectroscopy, powder and single crystal X-ray diffraction. Results for their use as catalysts in the ring opening polymerization of ε-caprolactone (ε-CL) and δ-valerolactone (δ-VL) are reported. High conversions were achievable at 130 °C, resulting in the formation of mostly cyclic polycaprolactone (PCL) and polyvalerolactone (PVL), respectively, with only a small number of linear polymers formed. Kinetic studies revealed the presence of two distinct rate steps, the second of which is assigned to the formation of an active decomposition product.

Citation

Gong, Y., Prior, T. J., & Redshaw, C. (2024). Co/Mn-based 2D coordination polymers: synthesis, structure and ring opening polymerization. Inorganica Chimica Acta, 561, Article 121871. https://doi.org/10.1016/j.ica.2023.121871

• Journal Article Type: Article
• Acceptance Date: Nov 25, 2023
• Online Publication Date: Nov 28, 2023
• Publication Date: Feb 1, 2024
• Deposit Date: Dec 6, 2023
• Publicly Available Date: Dec 7, 2023
• Journal: Inorganica Chimica Acta
• Print ISSN: 0020-1693
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 561
• Article Number: 121871
• DOI: https://doi.org/10.1016/j.ica.2023.121871
• Keywords: 2D coordination polymers; Ring opening polymerization; ε-caprolactone; δ-valerolactone
• Public URL: https://hull-repository.worktribe.com/output/4469028