{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T10:59:49Z","timestamp":1790420389379,"version":"4.1.0"},"reference-count":29,"publisher":"Wiley","issue":"19","license":[{"start":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T00:00:00Z","timestamp":1790380800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T00:00:00Z","timestamp":1790380800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemSusChem"],"published-print":{"date-parts":[[2026,10,14]]},"abstract":"<jats:p>\n                    Efficient recycling of polyurethane foam (PUF) under mild conditions remains a critical challenge. Herein, we report a ternary 1,1,3,3\u2010tetramethylguanidine (TMG)\/cadmium (Cd)\/1\u2010methyl\u20102\u2010hydroxymethylimidazole (HMMI) catalyst with Cd as the metal center, integrating Br\u00f8nsted base, Lewis acid, and binuclear metal. Combined with a multistage degradation strategy, it achieves complete cleavage of carbamate\/urea bonds in PUF under solvent\u2010free mild conditions (180\u2013200\u00b0C, 4\u2009h, degradant dosage: 10\u2009wt% relative to PUF mass), enabling spontaneous phase separation into high\u2010purity recycled polyols (RP) and isocyanate\u2010derived hard segments (HS). RP exhibits properties similar to virgin polyols (VP) (hydroxyl value: 66\u2009mgKOH\u2009g\n                    <jats:sup>\u22121<\/jats:sup>\n                    ; viscosity: 950\u2009mPa\u2009s) and can replace 40\u2009wt% of VP without compromising foam performance, while HS serves as a reinforcing additive for rigid foams. This closed\u2010loop strategy minimizes waste, aligns with circular economy principles, and provides a scalable pathway for PUF upcycling.\n                  <\/jats:p>","DOI":"10.1002\/cssc.71088","type":"journal-article","created":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T10:00:00Z","timestamp":1790416800000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Ternary Synergistic Catalysis Enables Mild Solvent\u2010Free Closed\u2010Loop Upcycling of Polyurethane Foam"],"prefix":"10.1002","volume":"19","author":[{"given":"Kaiming","family":"Du","sequence":"first","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"},{"name":"Materials Research Institute Guangdong SUNLU Technology Co. Ltd.  Zhongshan People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kejin","family":"Chen","sequence":"additional","affiliation":[{"name":"Zhejiang Pfluon Technology Co. Ltd.  Jinhua Zhejiang People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zongsheng","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fan","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ming","family":"Lu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hang","family":"Hu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lingxiao","family":"Cui","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6514-5495","authenticated-orcid":false,"given":"Meng","family":"Ma","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6600-5750","authenticated-orcid":false,"given":"Yanqin","family":"Shi","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yulu","family":"Zhu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6371-616X","authenticated-orcid":false,"given":"Si","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5781-4505","authenticated-orcid":false,"given":"Huiwen","family":"He","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xu","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering Zhejiang Key Laboratory of Plastic Modification and Processing Technology Zhejiang University of Technology  Hangzhou People\u2019s Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,26]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41557\u2010019\u20100249\u20102"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586\u2010023\u201006939\u2010z"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41893\u2010023\u201001224\u20103"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.abg4503"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1080\/15583724.2019.1673406"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41557\u2010021\u201000793\u20100"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201302766"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41557\u2010023\u201001151\u2010y"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41557\u2010023\u201001308\u20109"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202418034"},{"key":"e_1_2_7_12_1","first-page":"1471","volume-title":"Toward 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