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An efficient recycling process of glycolysis of PET in the presence of a sustainable nanocatalyst
RISE - Research Institutes of Sweden, Swerea, Swerea IVF.
RISE - Research Institutes of Sweden, Swerea, Swerea IVF.
RISE - Research Institutes of Sweden, Bioeconomy, Biorefinery and Energy.ORCID iD: 0000-0002-6608-6842
2018 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 135, no 21, article id 46285Article in journal (Refereed) Published
Abstract [en]

We demonstrate that the catalyst Perkalite F100 efficiently works as a nanocatalyst in the depolymerization of poly(ethylene terephthalate) (PET). After depolymerization of PET in the presence of ethylene glycol and the Perkalite nanocatalyst, the main product obtained was bis(2-hydroxylethyl) terephthalate (BHET) with high purity, as confirmed by Fourier transform infrared spectroscopy and NMR. The BHET monomers could serve directly as starting materials in a further polymerization into PET with a virgin quality and contribute to a solution for the disposal of PET polymers. Compared with the direct glycolysis of PET, the addition of a predegradation step was shown to reduce the reaction time needed to reach the depolymerization equilibrium. The addition of the predegradation step also allowed lower reaction temperatures. Therefore, the strategy to include a predegradation step before depolymerization is suitable for increasing the efficiency of the glycolysis reaction of PET into BHET monomers.

Place, publisher, year, edition, pages
2018. Vol. 135, no 21, article id 46285
Keywords [en]
catalysts, fibers, nanocrystals, nanoparticles, nanowires, polyesters, recycling, Ethylene, Ethylene glycol, Fourier transform infrared spectroscopy, Monomers, Pathology, Polyethylene terephthalates, Efficient recycling, High purity, Lower reaction temperature, Nano-catalyst, PET polymer, Poly(ethylene terephthalate) (PET), Terephthalate, Plastic recycling
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Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33399DOI: 10.1002/app.46285Scopus ID: 2-s2.0-85041650461OAI: oai:DiVA.org:ri-33399DiVA, id: diva2:1188773
Note

Funding details: MISTRA, Stiftelsen för Miljöstrategisk Forskning; Funding text: This work was financially supported by Mistra, the Swedish Foundation for Strategic Environmental Research.

Available from: 2018-03-08 Created: 2018-03-08 Last updated: 2018-08-08Bibliographically approved

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de la Motte, Hanna

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