High Density Polyethylenes Bearing Isolated In‐Chain Carbonyls**
Open accessAbstract
Polyethylene materials are highly important polymers which are produced in the largest volume among all plastics. Due to the chemical inert property of saturated carbon–carbon bonds, the degradation of polyethylene is extremely challenging, which prevents them from efficient chemical recycling. Installing functional groups in the main chain of polyethylenes may facilitate the degradation and following chemical recycling of polyethylene materials. Here we report a highly selective approach for the synthesis of high density polyethylenes bearing low content isolated in‐chain carbonyls. Linear high‐molecular weight polyethylene chains are synthesized via the palladium catalyzed copolymerization of ethylene with metal carbonyls. Different from traditional ethylene/CO copolymerization reactions, excellent non‐alternating selectivity has been achieved. While the properties of polyethylene have been retained in the copolymer, faster degradation compared with that of polyethylene was observed upon UV light irradiation. The synthesized materials may therefore serve as more environmentally friendly alternative plastics than traditional polyethylene materials.
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- Authors
- Tang, S., Seidel, F. W., & Nozaki, K.
- Affiliations
- The University of Tokyo (JP)
- Corresponding author
- Nozaki, Kyoko
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2021-11-09
- Volume
- 60
- Issue
- 51
- Pages
- 26506-26510
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W3190809029
- Cited by
- 104
- References
- 31
- Citations by year
- 2026: 17 · 2025: 25 · 2024: 24 · 2023: 17 · 2022: 21
- FWCI
- 4.05
- Type
- journal article
- Language
- en
- Open access
- Licence
- Locations
- Angewandte Chemie International Edition (publishedVersion)
- PubMed (publishedVersion)
- Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
- Funders
- Japan Society for the Promotion of Science (JP18H05259)
- Exploratory Research for Advanced Technology
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Chemistry › Organic Chemistry › Organometallic Complex Synthesis and Catalysis
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Keywords
- high-density polyethylene, polyethylene degradation, chemical recycling, palladium catalysis, UV degradation, functionalized polyethylene, biodegradable plastics
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