{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T17:12:26Z","timestamp":1790874746691,"version":"4.1.0"},"reference-count":40,"publisher":"American Chemical Society (ACS)","issue":"29","license":[{"start":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T00:00:00Z","timestamp":1784073600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T00:00:00Z","timestamp":1784073600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T00:00:00Z","timestamp":1784073600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-045"}],"funder":[{"DOI":"10.13039\/501100011308","name":"State Key Laboratory of Chemical Engineering","doi-asserted-by":"publisher","award":["SKL-ChE-25T03"],"award-info":[{"award-number":["SKL-ChE-25T03"]}],"id":[{"id":"10.13039\/501100011308","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22275162"],"award-info":[{"award-number":["22275162"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52322307"],"award-info":[{"award-number":["52322307"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004731","name":"Natural Science Foundation of Zhejiang Province","doi-asserted-by":"publisher","award":["LZ25E030007"],"award-info":[{"award-number":["LZ25E030007"]}],"id":[{"id":"10.13039\/501100004731","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,29]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Closed-loop recycling via depolymerization has emerged as a promising strategy to mitigate plastic pollution. Ideal recyclable polymer networks should feature highly dynamic bonds that depolymerize efficiently into monomers\/oligomers. However, this intrinsic bond lability inevitably introduces a critical trade-off, as it typically undermines the material\u2019s stability. In this work, we design a polyketimine network that can be closed-loop recycled under mild conditions, without the need for consumable reagents or catalysts, while retaining robust mechanical properties during use. At the molecular level, hindered ketimine bonds remain sufficiently labile to depolymerize back to the designed oligomers, due to the steric hindrance from the ketone and amine reactants. At the network level, however, hydrophobic phases block water ingress, effectively \u201clocking\u201d the network and preserving mechanical performance even under harsh conditions (85 \u00b0C, 85% relative humidity, 48 h). When recycling is desired, a compatible organic solvent disrupts these hydrophobic phases, allowing water to penetrate the network and trigger depolymerization. Consequently, depolymerization and repolymerization cycles can be conducted using only easily recoverable water and solvents under mild conditions. By leveraging this dynamic chemistry, the synthesized polymers can be disassembled and reassembled into diverse network topologies, corresponding to a Young\u2019s modulus that spans 6 orders of magnitude. Our work demonstrates that intrinsically labile dynamic bonds can be harnessed to build stable materials with tunable properties, offering a versatile platform for next-generation closed-loop recyclable polymers.<\/jats:p>","DOI":"10.1021\/jacs.6c00544","type":"journal-article","created":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T19:27:35Z","timestamp":1784143655000},"page":"30775-30784","source":"Crossref","is-referenced-by-count":1,"title":["Highly\nDynamic Yet Stable Polyketimine Networks with\nClosed-Loop Recyclability and Topological Programmability"],"prefix":"10.1021","volume":"148","author":[{"given":"Xiao","family":"Liu","sequence":"first","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ben","family":"He","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi","family":"Sheng","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cheng","family":"Liu","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong","family":"Wan","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dongyu","family":"Chen","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310023"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bo","family":"Yang","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongfeng","family":"Mu","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6931-9859","authenticated-orcid":true,"given":"Qian","family":"Zhao","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4957-3144","authenticated-orcid":true,"given":"Kaichen","family":"Xu","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310023"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9512-1507","authenticated-orcid":true,"given":"Zhibo","family":"Li","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]},{"name":"Qingdao University of Science and Technology , , ,","place":["Qingdao, China, 266042"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0222-9717","authenticated-orcid":true,"given":"Tao","family":"Xie","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8114-553X","authenticated-orcid":true,"given":"Ning","family":"Zheng","sequence":"additional","affiliation":[{"name":"Zhejiang University , , ,","place":["Hangzhou, China, 310058"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,7,15]]},"reference":[{"key":"2026073021323658000_cit1","unstructured":"Plastics Europe.\n          \n          Plastics the Fast Facts 2025; https:\/\/plasticseurope.org\/wp-content\/uploads\/2025\/09\/PE_TheFacts_25_digital-1pager-scrollable.pdf."},{"issue":"6726","key":"2026073021323658000_cit2","doi-asserted-by":"publisher","first-page":"1168","DOI":"10.1126\/science.adr3837","article-title":"Pathways to Reduce Global\nPlastic Waste Mismanagement\nand Greenhouse Gas Emissions by 2050","volume":"386","author":"Pottinger","year":"2024","journal-title":"Science"},{"issue":"1","key":"2026073021323658000_cit3","doi-asserted-by":"publisher","first-page":"397","DOI":"10.1038\/s41467-022-28085-2","article-title":"Upcycling of Dynamic\nThiourea Thermoset\nPolymers by Intrinsic Chemical Strengthening","volume":"13","author":"Feng","year":"2022","journal-title":"Nat. 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Soc."},{"issue":"15","key":"2026073021323658000_cit8","doi-asserted-by":"publisher","first-page":"7924","DOI":"10.1021\/acs.macromol.5c01425","article-title":"Chemically Closed-Loop Recyclable High-Strength Aliphatic\nPolycarbonate: Controlled Ring-Opening Polymerization, Kinetics, and\nThermodynamics","volume":"58","author":"Dai","year":"2025","journal-title":"Macromolecules"},{"issue":"12","key":"2026073021323658000_cit9","doi-asserted-by":"publisher","first-page":"4928","DOI":"10.1021\/jacs.9b00031","article-title":"4-Hydroxyproline-Derived Sustainable Polythioesters:\nControlled Ring-Opening Polymerization, Complete Recyclability, and\nFacile Functionalization","volume":"141","author":"Yuan","year":"2019","journal-title":"J. Am. Chem. 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Polym.\nSci."},{"issue":"24","key":"2026073021323658000_cit13","doi-asserted-by":"publisher","first-page":"9345","DOI":"10.1002\/anie.202001388","article-title":"Thiol\u2013Anhydride Dynamic Reversible\nNetworks","volume":"59","author":"Podgo\u0301rski","year":"2020","journal-title":"Angew. Chem., Int. Ed."},{"issue":"1","key":"2026073021323658000_cit14","doi-asserted-by":"publisher","first-page":"5504","DOI":"10.1038\/s41467-023-41267-w","article-title":"Recyclable Photoresins for Light-Mediated\nAdditive Manufacturing towards Loop 3D Printing","volume":"14","author":"Lopez De Pariza","year":"2023","journal-title":"Nat. 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Ed."},{"key":"2026073021323658000_cit25","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202411280","article-title":"Closed-Loop Recyclable and Totally\nRenewable Liquid Crystal Networks with Room-Temperature Programmability\nand Reconfigurable Functionalities","volume":"136","author":"Zhang","year":"2024","journal-title":"Angew. Chem."},{"issue":"5","key":"2026073021323658000_cit26","doi-asserted-by":"publisher","first-page":"442","DOI":"10.1038\/s41557-019-0249-2","article-title":"Closed-Loop Recycling\nof Plastics Enabled by Dynamic Covalent Diketoenamine Bonds","volume":"11","author":"Christensen","year":"2019","journal-title":"Nat. Chem."},{"issue":"26","key":"2026073021323658000_cit27","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202303039","article-title":"Chemically Recyclable\nDithioacetal\nPolymers via Reversible Entropy-Driven Ring-Opening Polymerization","volume":"62","author":"Kariyawasam","year":"2023","journal-title":"Angew. Chem., Int. Ed."},{"issue":"6185","key":"2026073021323658000_cit28","doi-asserted-by":"publisher","first-page":"732","DOI":"10.1126\/science.1251484","article-title":"Strong Thermosets\nand Organogels\nvia Paraformaldehyde Condensation with Diamines","volume":"344","author":"Garci\u0301a","year":"2014","journal-title":"Science"},{"issue":"6724","key":"2026073021323658000_cit29","doi-asserted-by":"publisher","first-page":"875","DOI":"10.1126\/science.ado1782","article-title":"Mechanically Strong yet Metabolizable\nSupramolecular Plastics by Desalting upon Phase Separation","volume":"386","author":"Cheng","year":"2024","journal-title":"Science"},{"issue":"36","key":"2026073021323658000_cit30","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202306188","article-title":"Closed-Loop\nRecycling of Vinylogous Urethane Vitrimers","volume":"62","author":"Ma","year":"2023","journal-title":"Angew. Chem., Int. 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Eng."},{"issue":"4","key":"2026073021323658000_cit38","doi-asserted-by":"publisher","first-page":"1352","DOI":"10.1016\/j.matt.2021.01.014","article-title":"Dual Closed-Loop\nChemical Recycling of Synthetic Polymers by Intrinsically\nReconfigurable Poly(Disulfides)","volume":"4","author":"Zhang","year":"2021","journal-title":"Matter"},{"issue":"1","key":"2026073021323658000_cit39","doi-asserted-by":"publisher","first-page":"3002","DOI":"10.1038\/s41467-024-47382-6","article-title":"Closed-Loop\nRecycling of Sulfur-Rich Polymers with Tunable Properties Spanning\nThermoplastics, Elastomers, and Vitrimers","volume":"15","author":"Zhao","year":"2024","journal-title":"Nat.\nCommun."},{"issue":"1","key":"2026073021323658000_cit40","doi-asserted-by":"publisher","first-page":"3679","DOI":"10.1038\/s41467-025-59027-3","article-title":"Heterocycle-Based Dynamic Covalent Chemistry for Dynamic Functional\nMaterials","volume":"16","author":"Ma","year":"2025","journal-title":"Nat. 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