{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T06:32:09Z","timestamp":1792045929160,"version":"4.4.0"},"reference-count":57,"publisher":"Wiley","issue":"22","license":[{"start":{"date-parts":[[2025,10,6]],"date-time":"2025-10-06T00:00:00Z","timestamp":1759708800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemSusChem"],"published-print":{"date-parts":[[2025,11,24]]},"abstract":"<jats:p>\n                    Herein, it is demonstrated that biobased poly(menthene carbonate) (\n                    <jats:bold>PMC<\/jats:bold>\n                    ) can be conveniently used to enable catalysis\u2010promoted atom looping thereby creating functionalized synthons and new types of repolymerizable monomers. The biobased polycarbonate undergoes chemoselective depolymerization in the presence of a bicyclic guanidinium providing under distinct reaction conditions and concentrations high\u2010yield and selective access to either menthene oxide (\n                    <jats:bold>MO<\/jats:bold>\n                    ), menthene carbonate (\n                    <jats:bold>MC<\/jats:bold>\n                    ), or menthene diol (\n                    <jats:bold>MD<\/jats:bold>\n                    ). These latter depolymerization products further enable the valorization of the original polymer atoms into several functionalized, partially biobased building blocks by integrating a monomer\u2010and\u2010molecular loop approach. As a proof\u2010of\u2010principle, four distinct scaffolds were converted into novel (bifunctional) monomers with potential to create a wider series of macromolecules. This work exemplifies a unique and holistic catalytic reuse of polymer atoms accommodating an on\u2010demand preparation of fine\u2010chemical precursors, repolymerizable monomers, and new monomer precursor designs.\n                  <\/jats:p>","DOI":"10.1002\/cssc.202501905","type":"journal-article","created":{"date-parts":[[2025,10,6]],"date-time":"2025-10-06T23:38:48Z","timestamp":1759793928000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Enabling a Diversity\u2010Oriented Catalytic Atom Looping of a Biobased Polycarbonate"],"prefix":"10.1002","volume":"18","author":[{"given":"Enrico","family":"Lanaro","sequence":"first","affiliation":[{"name":"Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology  Av. Pa\u00efsos Catalans 16 Tarragona 43007 Spain"},{"name":"Departament de Qu\u00edmica F\u00edsica i Inorg\u00e1nica Universitat Rovira i Virgili  Marcel\u00b7l\u00ed Domingo s\/n Tarragona 43007 Spain"},{"name":"Institut f\u00fcr Organische Chemie Heidelberg University  Im Neuenheimer Feld 270 69120 Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thirusangumurugan","family":"Senthamarai","sequence":"additional","affiliation":[{"name":"Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology  Av. Pa\u00efsos Catalans 16 Tarragona 43007 Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen K.","family":"Hashmi","sequence":"additional","affiliation":[{"name":"Institut f\u00fcr Organische Chemie Heidelberg University  Im Neuenheimer Feld 270 69120 Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7402-4764","authenticated-orcid":false,"given":"Arjan W.","family":"Kleij","sequence":"additional","affiliation":[{"name":"Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology  Av. Pa\u00efsos Catalans 16 Tarragona 43007 Spain"},{"name":"Catalan Institute of Research and Advanced Studies (ICREA)  Pg. Lluis Companys 23 Barcelona 08010 Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,10,6]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/envhealth.3c00052"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.adl2746"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.3c00739"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/cssc.202100400"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1039\/D5SC00083A"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578-021-00407-8"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578-020-0190-4"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3GC04215D"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.1c00173"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature21001"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsmacrolett.0c00437"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1039\/D4CS00663A"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/acssuschemeng.2c07422"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201504510"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-024-46656-3"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.0c00883"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3SU00248A"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202307507"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1039\/C9PY01927H"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1038\/pj.2015.39"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.2c06937"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.3c14170"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/pol.20220118"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201700546"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.8b10675"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1039\/C7PY00118E"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.1039\/D0PY00817F"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsmacrolett.7b00310"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202314659"},{"key":"e_1_2_7_31_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201604674"},{"key":"e_1_2_7_32_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja0472580"},{"key":"e_1_2_7_33_1","doi-asserted-by":"publisher","DOI":"10.1038\/ncomms11862"},{"key":"e_1_2_7_34_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.7b00770"},{"key":"e_1_2_7_35_1","doi-asserted-by":"publisher","DOI":"10.1039\/C5GC01694K"},{"key":"e_1_2_7_36_1","doi-asserted-by":"publisher","DOI":"10.1021\/acssuschemeng.0c04335"},{"key":"e_1_2_7_37_1","unstructured":"Initial ROP experiments at lower reaction temperatures only provided very low MO conversions (<5%) showing the more challenging nature of TBD\u2010mediated polymerization of MC."},{"key":"e_1_2_7_38_1","unstructured":"Although mechanistically not yet fully understood one possibility is that trace amounts of water may provide pronucleophilic species that can be activated by TBD in a similar way as BnOH and initiate the ROP of MC."},{"key":"e_1_2_7_39_1","unstructured":"The biocontent (BC) here is defined as the % of biomass transferred from PMC (2\u2010menthene and CO2) to MO MC MD and their derivatives. We consider MO initially used for the ROCOP process as partially biobased as the epoxidation of 2\u2010menthene was carried out with mCPBA."},{"key":"e_1_2_7_40_1","unstructured":"Brsm stands for \u201cbased on reacted starting material\u201d whereas busm is related to \u201cbased on unreacted starting material\u201d."},{"key":"e_1_2_7_41_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.macromol.7b00862"},{"key":"e_1_2_7_42_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.9b04086"},{"key":"e_1_2_7_43_1","doi-asserted-by":"publisher","DOI":"10.1016\/0032-3861(96)00323-0"},{"key":"e_1_2_7_44_1","doi-asserted-by":"publisher","DOI":"10.1248\/cpb.48.1536"},{"key":"e_1_2_7_45_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0040-4039(00)99081-6"},{"key":"e_1_2_7_46_1","doi-asserted-by":"publisher","DOI":"10.1021\/jo302615g"},{"key":"e_1_2_7_47_1","doi-asserted-by":"publisher","DOI":"10.1002\/adsc.201600831"},{"key":"e_1_2_7_48_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202104495"},{"key":"e_1_2_7_49_1","doi-asserted-by":"publisher","DOI":"10.1039\/C4CC10113H"},{"key":"e_1_2_7_50_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja311053h"},{"key":"e_1_2_7_51_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.accounts.2c00204"},{"key":"e_1_2_7_52_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.progpolymsci.2025.101968"},{"key":"e_1_2_7_53_1","doi-asserted-by":"publisher","DOI":"10.1038\/s42004-023-01041-x"},{"key":"e_1_2_7_54_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.progpolymsci.2017.11.002"},{"key":"e_1_2_7_55_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202201785"},{"key":"e_1_2_7_56_1","doi-asserted-by":"publisher","DOI":"10.1021\/ma401286x"},{"key":"e_1_2_7_57_1","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3927(20021001)23:15<881::AID-MARC881>3.0.CO;2-C"},{"key":"e_1_2_7_58_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.macromol.4c00411"}],"container-title":["ChemSusChem"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/cssc.202501905","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,11,24]],"date-time":"2025-11-24T14:43:14Z","timestamp":1763995394000},"score":1,"resource":{"primary":{"URL":"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/10.1002\/cssc.202501905"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,10,6]]},"references-count":57,"journal-issue":{"issue":"22","published-print":{"date-parts":[[2025,11,24]]}},"alternative-id":["10.1002\/cssc.202501905"],"URL":"https:\/\/doi.org\/10.1002\/cssc.202501905","archive":["Portico"],"relation":{},"ISSN":["1864-5631","1864-564X"],"issn-type":[{"value":"1864-5631","type":"print"},{"value":"1864-564X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,10,6]]},"assertion":[{"value":"2025-09-04","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-10-06","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e202501905"}}