High Atom-Economy Low-Temperature Depolymerization of Polyethylene Terephthalate Using Choline Hydroxide

Željko Petrovski; Hugo Q. Araujo; Diogo Martins; João Gonçalves; Inês Matos; Marcia Ventura; Mario Emanuel Dinis; Diana Fonseca Tomazio; Luı́s C. Branco; Nuno Lapa

doi:10.1039/d6su00314a

January 1, 2026RSC SustainabilityOpen Access

High Atom-Economy Low-Temperature Depolymerization of Polyethylene Terephthalate Using Choline Hydroxide

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Key Points

The study aims to explore the depolymerization of polyethylene terephthalate (PET) using choline hydroxide at low temperatures.
Investigated low-temperature depolymerization of PET using choline hydroxide as a reagent.
Employed methanol with dichloromethane or dimethoxymethane as co-solvents.
Analyzed the efficiency of different solvent combinations in the depolymerization process.
Achieved significant depolymerization of PET using near-stoichiometric amounts of choline hydroxide.
Dichloromethane-enhanced systems showed improved yields in the depolymerization process.
Indicated optimal conditions that can lead to effective recycling of PET.

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Implication

Investigates depolymerization outcomes in polyethylene terephthalate using choline hydroxide, suggesting effective methods for recycling.

Abstract

This study investigates the low-temperature depolymerization of polyethylene terephthalate (PET) using near-stoichiometric choline hydroxide (ChOH) in methanol, assisted by dichloromethane (DCM) or dimethoxymethane (DMM) as co-solvents. The DCM-assisted system enables...

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Petrovski et al. (2026) studied this question.

synapsesocial.com/papers/6a338c62630953a74978da82 https://doi.org/10.1039/d6su00314a

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High Atom-Economy Low-Temperature Depolymerization of Polyethylene Terephthalate Using Choline Hydroxide

Key Points

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Abstract

Discussion

Cite This Study

High Atom-Economy Low-Temperature Depolymerization of Polyethylene Terephthalate Using Choline Hydroxide

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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