Heterofunctional telechelic polymethylene: from precise synthesis to diverse polyolefin-like polymers

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ID: 323599
2026
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Abstract
Abstract Telechelic polyolefins are key building blocks for constructing state-of-the-art polyolefins bearing in-chain functionalities such as ester groups, which have attracted significant attention over recent years. However, the precise synthesis of such α,ω-heterofunctional telechelic polyolefins remains challenging. In this study, polyhomologation is used for the synthesis of α-ester-ω-hydroxy telechelic polymethylenes (bearing hexyl side-chains) through the boron-initiated polyhomologation of ylide monomers. These telechelic polymers are structurally-similar to telechelic polyolefins. This method allows for precise control over the end-group fidelity ([OH, COOMe] > 99%) and molecular weight, with particularly narrow molecular weight distributions (Ð = 1.05–1.21) being achieved. Consequently, this approach enables the production of diverse topologies including linear, branched (side-chain), and block structures. Notably, the molecular weight of telechelic polymethylenes was precisely tailored as required. The obtained telechelic polymethylenes serve as AB-type macromonomers and undergo direct polycondensation to afford high-molecular-weight (147–300 kDa) polyolefin-like polymers featuring in-chain-ester groups, imparting diverse microstructures and topologies including high-density polyethylene (PE), polyolefin elastomer (POE), and random as well as alternating olefin block copolymers (OBC).
Reference Key
openalex_W7172393512 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xiukuan Yao, Yuxing Zhang, Kangkang Li, Zhongbao Jian
Journal national science review
Year 2026
DOI
10.1093/nsr/nwag471
URL
https://doi.org/10.1093/nsr/nwag471
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