From PEF to rPEF: disclosing the potential of deep eutectic solvents in continuous de-/re-polymerization recycling of biobased polyesters

resumo

Chemical attempts to recycle bio-based poly(ethylene 2,5-furandicarboxylate) (PEF) have not been reported, yet its expected global production, potential accumulation or persistence in the environment calls for innovative solutions. Here, we report the design of a urea : zinc acetate deep eutectic solvent (DES) system for a continuous, eco-friendly and closed-loop approach for recycling PEF into rPEF.

palavras-chave

POLYETHYLENE TEREPHTHALATE; DEPOLYMERIZATION; HYDROLYSIS; EFFICIENT; CATALYST; CHLORIDE; WASTE; STEP

categoria

Chemistry; Science & Technology - Other Topics

autores

Agostinho, B; Silvestre, AJD; Sousa, AF

nossos autores

agradecimentos

This work was developed within the scope of CICECO-Aveiro Institute of Materials (UIDB/50011/2020 & UIDP/50011/2020) & LA/P/0006/2020, financed by national funds through the FCT-FundacAo para a Ciencia e a Tecnologia/MEC (PIDDAC). This research is also sponsored by FEDER funds through the program COMPETE-Programa Operacional Factores de Competitividade-and by national funds through the FCT under the project UID/EMS/00285/2020. The FCT is also acknowledged for the research contract under Scientific Employment Stimulus to AFS (CEECIND/02322/2020) and for a doctorate grant to BA (2020.04495.BD). This publication is supported by COST Action FUR4Sustain-European network of FURan based chemicals and materials FOR a Sustainable development, CA18220, supported by COST (European Cooperation in Science and Technology).

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