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Selective Organocatalytic Chemical Recycling of Polycarbonate into High Value Cyclic Carbonates

99 Pages Posted: 3 Jan 2020 Sneak Peek Status: Preprint

See all articles by Coralie Jehanno

Coralie Jehanno

University of the Basque Country UPV/EHU - POLYMAT

Jeremy Demarteau

University of the Basque Country UPV/EHU - POLYMAT

Daniele Mantione

University of Bordeaux, Pessac - Laboratoire de Chimie des Polymères Organiques

Maria Arno

University of Birmingham - School of Chemistry

Fernando Ruiperez

University of the Basque Country UPV/EHU - POLYMAT

James L. Hedrick

IBM Research - Almaden Research Center

Andrew P. Dove

University of Birmingham - School of Chemistry

Haritz Sardon

University of the Basque Country UPV/EHU - POLYMAT

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Abstract

Chemical recycling of plastic wastes represents a greener alternative to landfill and incineration, and potentially offers a solution to the environmental consequences of increased plastic waste. Most plastics that are widely used today are designed for durability, hence currently available depolymerization methods typically require harsh conditions and when applied to blended and mixed plastic feeds generate a mixture of products. Herein, the selective depolymerization of bisphenol A polycarbonate (BPA-PC) mediated by a thermally stable dual organocatalyst is performed to create bisphenol A and a range of added-value cyclic carbonate monomers. Moreover, we demonstrate that the energetic differences in the catalytic glycolysis enables not only the selective and sequential depolymerization of BPA-PC and PET (which cannot be separated based on their density) but more importantly from technical grade BPA-PC/PET blends. This methodology both presents waste BPA-PC as a ‘greener’ alternative for the synthesis of small molecule carbonates and demonstrates the concept that catalytic depolymerization offers great potential for selective plastic recycling.

Keywords: chemical recycling, upcycling, Selective Depolymerization, organocatalysis

Suggested Citation

Jehanno, Coralie and Demarteau, Jeremy and Mantione, Daniele and Arno, Maria and Ruiperez, Fernando and Hedrick, James L. and Dove, Andrew P. and Sardon, Haritz, Selective Organocatalytic Chemical Recycling of Polycarbonate into High Value Cyclic Carbonates. CHEMJOURNAL-D-19-01317. Available at SSRN: https://ssrn.com/abstract=3508887 or http://dx.doi.org/10.2139/ssrn.3508887
This is a paper under consideration at Cell Press and has not been peer-reviewed.

Coralie Jehanno

University of the Basque Country UPV/EHU - POLYMAT ( email )

Joxe Mari Korta Center
San Sebastian, 20018
Spain

Jeremy Demarteau

University of the Basque Country UPV/EHU - POLYMAT ( email )

Joxe Mari Korta Center
San Sebastian, 20018
Spain

Daniele Mantione

University of Bordeaux, Pessac - Laboratoire de Chimie des Polymères Organiques ( email )

Pessac Cedex, 33615
France

Maria Arno

University of Birmingham - School of Chemistry ( email )

Birmingham, B15 2TT
United Kingdom

Fernando Ruiperez

University of the Basque Country UPV/EHU - POLYMAT ( email )

Joxe Mari Korta Center
San Sebastian, 20018
Spain

James L. Hedrick

IBM Research - Almaden Research Center

San Jose, CA 95120
United States

Andrew P. Dove

University of Birmingham - School of Chemistry

Birmingham, B15 2TT
United Kingdom

Haritz Sardon (Contact Author)

University of the Basque Country UPV/EHU - POLYMAT ( email )

Joxe Mari Korta Center
San Sebastian, 20018
Spain

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