Biodegradable High‐Density Polyethylene‐like Material

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2023
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DEEPCAT: Degradable Polyolefin Materials Enabled by Catalytic Methods
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Angewandte Chemie International Edition. Wiley. 2023, 62(6), e202213438. ISSN 1433-7851. eISSN 1521-3773. Available under: doi: 10.1002/anie.202213438
Zusammenfassung

We report a novel polyester material generated from readily available biobased 1,18-octadecanedicarboxylic acid and ethylene glycol possesses a polyethylene-like solid-state structure and also tensile properties similar to high density polyethylene (HDPE). Despite its crystallinity, high melting point (Tm=96 °C) and hydrophobic nature, polyester-2,18 is subject to rapid and complete hydrolytic degradation in in vitro assays with isolated naturally occurring enzymes. Under industrial composting conditions (ISO standard 14855-1) the material is biodegraded with mineralization above 95 % within two months. Reference studies with polyester-18,18 (Tm=99 °C) reveal a strong impact of the nature of the diol repeating unit on degradation rates, possibly related to the density of ester groups in the amorphous phase. Depolymerization by methanolysis indicates suitability for closed-loop recycling.

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ISO 690ECK, Marcel, Simon Timm SCHWAB, Taylor Frederick NELSON, Katrin WURST, Steffen IBERL, David SCHLEHECK, Christoph LINK, Glauco BATTAGLIARIN, Stefan MECKING, 2023. Biodegradable High‐Density Polyethylene‐like Material. In: Angewandte Chemie International Edition. Wiley. 2023, 62(6), e202213438. ISSN 1433-7851. eISSN 1521-3773. Available under: doi: 10.1002/anie.202213438
BibTex
@article{Eck2023Biode-59756,
  year={2023},
  doi={10.1002/anie.202213438},
  title={Biodegradable High‐Density Polyethylene‐like Material},
  number={6},
  volume={62},
  issn={1433-7851},
  journal={Angewandte Chemie International Edition},
  author={Eck, Marcel and Schwab, Simon Timm and Nelson, Taylor Frederick and Wurst, Katrin and Iberl, Steffen and Schleheck, David and Link, Christoph and Battagliarin, Glauco and Mecking, Stefan},
  note={Article Number: e202213438}
}
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