{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T21:03:33Z","timestamp":1792184613292,"version":"4.4.0"},"reference-count":58,"publisher":"Wiley","issue":"13","license":[{"start":{"date-parts":[[2025,1,15]],"date-time":"2025-01-15T00:00:00Z","timestamp":1736899200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,1,15]],"date-time":"2025-01-15T00:00:00Z","timestamp":1736899200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"published-print":{"date-parts":[[2025,3,24]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Covalent adaptable networks (CANs), a novel class of crosslinked polymers with dynamic covalent bonds, have gained significant attention for combining the durability of thermosets with the reprocessability of thermoplastics, making them promising for emerging applications. Here, we report the first example of poly[2]rotaxane\u2010type covalent adaptable networks (\n                    <jats:sup>PR<\/jats:sup>\n                    CANs), in which oligo[2]rotaxane backbones characterized by densely packed mechanical bonds, are cross\u2010linked through dynamic C\u2212N bonds. The oligo[2]rotaxane backbones could guarantee the mechanical properties of the CANs. Under an external force, the synergy of numerous microscopic motions of the cascade [2]rotaxane units, progressively introducing the initially hidden short chains, expands the polymer network, imparting good stretchability to the\n                    <jats:sup>PR<\/jats:sup>\n                    CANs (217\u2009%). On the other hand, the dissociation of host\u2010guest recognition, followed by the motion of mechanical bonds, constitutes a unique energy dissipation pathway, ultimately enhancing the toughness of\n                    <jats:sup>PR<\/jats:sup>\n                    CANs (7.6\u2005MJ\/m\n                    <jats:sup>3<\/jats:sup>\n                    ). In contrast, the control CAN, which lacks movable mechanical bonds, demonstrates significantly lower stretchability (40\u2009%) and toughness (1.5\u2005MJ\/m\n                    <jats:sup>3<\/jats:sup>\n                    ). Moreover, the dynamic C\u2212N bond can undergo high efficiency of 1,2,3\u2010triazole alkylation and trans\u2010N\u2010alkylation exchanges at 1,2,3\u2010triazolium sites at elevated temperatures, with good reprocessability and without compromising their mechanical performance. This work demonstrates the great potential of oligo[2]rotaxanes as a novel polymer backbone for the development of sustainable materials with excellent mechanical properties.\n                  <\/jats:p>","DOI":"10.1002\/anie.202423578","type":"journal-article","created":{"date-parts":[[2025,1,8]],"date-time":"2025-01-08T22:39:50Z","timestamp":1736375990000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Covalent Adaptable Poly[2]rotaxane Networks via Dynamic C\u2212N Bond Transalkylation"],"prefix":"10.1002","volume":"64","author":[{"given":"Ruixue","family":"Bai","sequence":"first","affiliation":[{"name":"School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing Shanghai Jiao Tong University  Shanghai 200240 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenbin","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing Shanghai Jiao Tong University  Shanghai 200240 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenzhe","family":"Gao","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing Shanghai Jiao Tong University  Shanghai 200240 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhaoming","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing Shanghai Jiao Tong University  Shanghai 200240 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Yu","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing Shanghai Jiao Tong University  Shanghai 200240 P. R. 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