Cited by 125Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesOrganometallic Complex Synthesis and Catalysis

Chemically Recyclable Ester-Linked Polypropylene

Kocen, Andrew L., Cui, Shilin, Lin, Ting-Wei, LaPointe, Anne M., Coates, Geoffrey W.·2022·Journal of the American Chemical Society

Abstract

Polyolefins represent the largest class of commodity materials due to their excellent material properties; however, they have limited pathways to chemical recycling and are often difficult to mechanically recycle. Here we demonstrate a new catalyst for the isoselective copolymerization of propylene and butadiene capable of favoring 1,4-insertion over 1,2-insertion while maintaining good molecular weights and turnover frequencies. This isotactic propylene copolymer with main-chain unsaturation was depolymerized to a telechelic macromonomer using an olefin metathesis catalyst and 2-hydroxyethyl acrylate. After hydrogenation, the telechelic macromonomer was repolymerized to form an ester-linked polypropylene material. This polymer shows thermal and mechanical properties comparable to linear low-density polyethylene. Finally, the telechelic macromonomer could be regenerated through the depolymerization of the ester-linked polypropylene material, which allows for the chemical recycling to macromonomer. This process provides a route to transform partially unsaturated polyolefins to chemically recyclable materials with similar properties to their parent polymers.

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Crossref · 10.1021/jacs.2c04499

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75 of 75 references verified0 citation errors · 0 not checkable

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Authors
Kocen, A. L., Cui, S., Lin, T.-W., LaPointe, A. M., & Coates, G. W.
Affiliations
Cornell University (US)
Corresponding author
  • LaPointe, Anne M.
  • Coates, Geoffrey W.
Venue
Journal of the American Chemical Society
Published
2022-07-06
Volume
144
Issue
28
Pages
12613-12618
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W4284666627
Cited by
125
References
75
Citations by year
2026: 19 · 2025: 49 · 2024: 19 · 2023: 32 · 2022: 6
FWCI
8.50
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Chemical Society (publishedVersion)
  • PubMed (publishedVersion)
Funders
Basic Energy Sciences (DE-AC02-07CH11358)
Topics
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Chemistry › Organic Chemistry › Organometallic Complex Synthesis and Catalysis
Keywords
chemical recycling, polyolefins, olefin metathesis, 2-hydroxyethyl acrylate, depolymerization, hydrogenation, linear low-density polyethylene
MeSH terms
Esters, Molecular Weight, Polymers, Polypropylenes, Polymerization

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