Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal-Organic Framework
Vanadium catalysts offer unique selectivity in olefin polymerization, yet are underutilized industrially owing to their poor stability and productivity. Reported here is the immobilization of vanadium by cation exchange in MFU-4l, thus providing a metal–organic framework (MOF) with vanadium in a mol...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020
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| Online Access: | https://hdl.handle.net/1721.1/126149 |
| _version_ | 1826209450505011200 |
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| author | Comito, Robert J Wu, Zhenwei Zhang, Guanghui Lawrence, John A. Korzynski, Maciej Damian Kehl, Jeffrey A. Miller, Jeffrey T. Dinca, Mircea |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Comito, Robert J Wu, Zhenwei Zhang, Guanghui Lawrence, John A. Korzynski, Maciej Damian Kehl, Jeffrey A. Miller, Jeffrey T. Dinca, Mircea |
| author_sort | Comito, Robert J |
| collection | MIT |
| description | Vanadium catalysts offer unique selectivity in olefin polymerization, yet are underutilized industrially owing to their poor stability and productivity. Reported here is the immobilization of vanadium by cation exchange in MFU-4l, thus providing a metal–organic framework (MOF) with vanadium in a molecule-like coordination environment. This material forms a single-site heterogeneous catalyst with methylaluminoxane and provides polyethylene with low polydispersity (PDI≈3) and the highest activity (up to 148 000 h−1) reported for a MOF-based polymerization catalyst. Furthermore, polyethylene is obtained as a free-flowing powder as desired industrially. Finally, the catalyst shows good structural integrity and retains polymerization activity for over 24 hours, both promising attributes for the commercialization of vanadium-based polyolefins. |
| first_indexed | 2024-09-23T14:22:42Z |
| format | Article |
| id | mit-1721.1/126149 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:22:42Z |
| publishDate | 2020 |
| publisher | Wiley |
| record_format | dspace |
| spelling | mit-1721.1/1261492022-10-01T20:56:59Z Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal-Organic Framework Comito, Robert J Wu, Zhenwei Zhang, Guanghui Lawrence, John A. Korzynski, Maciej Damian Kehl, Jeffrey A. Miller, Jeffrey T. Dinca, Mircea Massachusetts Institute of Technology. Department of Chemistry Vanadium catalysts offer unique selectivity in olefin polymerization, yet are underutilized industrially owing to their poor stability and productivity. Reported here is the immobilization of vanadium by cation exchange in MFU-4l, thus providing a metal–organic framework (MOF) with vanadium in a molecule-like coordination environment. This material forms a single-site heterogeneous catalyst with methylaluminoxane and provides polyethylene with low polydispersity (PDI≈3) and the highest activity (up to 148 000 h−1) reported for a MOF-based polymerization catalyst. Furthermore, polyethylene is obtained as a free-flowing powder as desired industrially. Finally, the catalyst shows good structural integrity and retains polymerization activity for over 24 hours, both promising attributes for the commercialization of vanadium-based polyolefins. National Science Foundation (grant no. DMR-1452612) 2020-07-13T15:09:05Z 2020-07-13T15:09:05Z 2018-06 2019-12-17T14:07:39Z Article http://purl.org/eprint/type/JournalArticle 0570-0833 https://hdl.handle.net/1721.1/126149 Comito, Robert J., et al. "Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal-Organic Framework." Angewandte Chemie International Edition 57, 27 (June 2018): p. 8135-39 doi 10.1002/ANIE.201803642 ©2018 Author(s) en 10.1002/ANIE.201803642 Angewandte Chemie International Edition Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Wiley MIT web domain |
| spellingShingle | Comito, Robert J Wu, Zhenwei Zhang, Guanghui Lawrence, John A. Korzynski, Maciej Damian Kehl, Jeffrey A. Miller, Jeffrey T. Dinca, Mircea Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal-Organic Framework |
| title | Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal-Organic Framework |
| title_full | Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal-Organic Framework |
| title_fullStr | Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal-Organic Framework |
| title_full_unstemmed | Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal-Organic Framework |
| title_short | Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal-Organic Framework |
| title_sort | stabilized vanadium catalyst for olefin polymerization by site isolation in a metal organic framework |
| url | https://hdl.handle.net/1721.1/126149 |
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