Bicyclic Guanidine Promoted Mechanistically Divergent Depolymerization and Recycling of a Biobased Polycarbonate.
- Resource Type
- Academic Journal
- Authors
- Lamparelli DH; Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.; Villar-Yanez A; Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.; Departament de Química Física i Inorgànica/, Universitat Rovira i Virgili, Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain.; Dittrich L; Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.; Rintjema J; Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.; Bravo F; Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.; Bo C; Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.; Departament de Química Física i Inorgànica/, Universitat Rovira i Virgili, Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain.; Kleij AW; Institute of Chemical Research of Catalonia (ICIQ-Cerca), the Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.; Catalan Institute of Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain.
- Source
- Publisher: Wiley-VCH Country of Publication: Germany NLM ID: 0370543 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1521-3773 (Electronic) Linking ISSN: 14337851 NLM ISO Abbreviation: Angew Chem Int Ed Engl Subsets: PubMed not MEDLINE; MEDLINE
- Subject
- Language
- English
We here report the organocatalytic and temperature-controlled depolymerization of biobased poly(limonene carbonate) providing access to its trans-configured cyclic carbonate as the major product. The base TBD (1,5,7-triazabicyclo[4.4.0]dec-5-ene) offers a unique opportunity to break down polycarbonates via end-group activation or main chain scission pathways as supported by various controls and computational analysis. These energetically competitive processes represent an unprecedented divergent approach to polycarbonate recycling. The trans limonene carbonate can be converted back to its polycarbonate via ring-opening polymerization using the same organocatalyst in the presence of an alcohol initiator, offering thus a potential circular and practical route for polycarbonate recycling.
(© 2023 Wiley-VCH GmbH.)