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An Oxalate Bridged Binuclear Iron(III) Ionic Liquid for the Highly Efficient Glycolysis of Polyethylene Terephthalate under Microwave Irradiation

Abstract: An oxalate-bridged binuclear iron(III) ionic liquid combined with an imidazolium based cation, (dimim)2[Fe2Cl4(??ox)], was synthesized and characterized by a wide range of techniques. This halometallate ionic liquid was active in catalyzing the depolymerization of polyethylene terephthalate (PET) by glycolysis, under conventional and microwave?assisted heating conditions. Both methodologies were very selective towards the production of bis(2?hydroxyethyl)terephthalate (BHET). The employment of microwave heating proved beneficial in terms of time and energy saving when compared to the use of thermal heating. Indeed, dielectric spectroscopy studies revealed that the binuclear iron?containing ionic liquid exhibits an excellent heating response under an electromagnetic field. The catalyst provided quantitative conversions to BHET in the glycolysis of post?consumer PET bottles in only 3?h through microwave heating, as compared to 80?% conversion after 24?h under conventional heating.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: ChemPlusChemVolume 84, Issue 7, p.786-793

Editorial: Wiley-VCH-Verl.

 Fecha de publicación: 01/07/2019

Nº de páginas: 8

Tipo de publicación: Artículo de Revista

DOI: 10.1002/cplu.201900075

ISSN: 2192-6506

Url de la publicación: https://doi.org/10.1002/cplu.201900075

Autores/as

COT, SERGI

LEU, MEIKE K.

KALAMIOTIS, ALEXIS

DIMITRAKIS, GEORGIOS

CANO, ISRAEL