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January 1, 2020Green Chemistry255 citations

Degradation of poly(ethylene terephthalate) catalyzed by metal-free choline-based ionic liquids

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YLYachan LiuXYXiaoqian YaoHYHaoyu Yao

Key Points

  • To evaluate the catalytic performance of metal-free choline-based ionic liquids in the glycolysis and degradation of poly(ethylene terephthalate) (PET) for closed-loop recycling.
  • Applied metal-free choline-based ionic liquids as catalysts to facilitate the chemical glycolysis of poly(ethylene terephthalate).
  • Converted PET into its monomer bis(hydroxyethyl)terephthalate (BHET), providing high-grade precursor material suitable for repolymerization.
  • Demonstrated a viable, metal-free catalytic route to enable permanent closed-loop recycling of PET plastics.

Abstract

Glycolysis of PET is a prospective way for degradation of PET to its monomer bis(hydroxyethyl)terephthalate (BHET) which can be polymerized again to form new qualified PET materials, and hence provides possibilities for a permanent loop recycling.

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Cite This Study

Liu et al. (2020) studied this question.

synapsesocial.com/papers/69d8aff933ca018b39ae3e03https://doi.org/10.1039/d0gc00327a
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