{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T08:13:12Z","timestamp":1788509592508,"version":"build-2803163510"},"reference-count":39,"publisher":"Wiley","issue":"17","license":[{"start":{"date-parts":[[2026,7,26]],"date-time":"2026-07-26T00:00:00Z","timestamp":1785024000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,7,26]],"date-time":"2026-07-26T00:00:00Z","timestamp":1785024000000},"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":["Macromol. Rapid Commun."],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Sliding elastomers (SE) based on polyrotaxane (PR) architectures exhibit exceptional mechanical toughness through the \u201cpulley effect\u201d. However, side\u2010chain crystallization in such solvent\u2010free systems often compromises molecular mobility and the efficiency of the topological cross\u2010links. In this study, a series of solvent\u2010free sliding elastomers was developed by grafting amorphous poly(\u03b5\u2010caprolactone\u2010co\u2010\u03b4\u2010valerolactone) [P(CL\u2010co\u2010VL)] side chains that are amorphous at ambient conditions onto a hydroxypropylated polyrotaxane (HPR) backbone via ring\u2010opening polymerization. Systematic investigations were conducted by varying the side\u2010chain degrees of polymerization (DP = 13, 26, 52) and the cross\u2010linking indices (r = [NCO]\/[OH]). The amorphous nature of the random copolymeric side chains effectively suppressed crystallization, thereby facilitating the unhindered sliding motion of \u03b1\u2010cyclodextrin rings along the PEG axis. Compared to traditional fixed covalent cross\u2010linking initiated by hydroxypropyl \u03b2\u2010cyclodextrin (HPCD), these solvent\u2010free elastomers exhibited superior mechanical performance, achieving a tensile strength of 10.2\u00a0MPa and an exceptional elongation at break of 830%. It is demonstrated that the synergy between topological sliding cross\u2010links and the amorphous side\u2010chain design allows for precise tuning of mechanical responses and stress homogenization. This work provides a robust strategy for the fabrication of high\u2010performance, solvent\u2010free topological elastomers with an optimized \u201cpulley effect\u201d for advanced flexible applications.<\/jats:p>","DOI":"10.1002\/marc.70379","type":"journal-article","created":{"date-parts":[[2026,7,26]],"date-time":"2026-07-26T09:30:20Z","timestamp":1785058220000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Topological Stress Dissipation in Amorphous Elastomers Crosslinked by Polyrotaxanes with Poly(\u03b5\u2010Caprolactone\u2010co\u2010\u03b4\u2010Valerolactone) Side\u2010Chains"],"prefix":"10.1002","volume":"47","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-6641-8410","authenticated-orcid":false,"given":"Zifan","family":"Zhang","sequence":"first","affiliation":[{"name":"Center of Advanced Elastomer Materials College of Material Science &amp; Engineering Beijing University of Chemical Technology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li","family":"Liu","sequence":"additional","affiliation":[{"name":"Center of Advanced Elastomer Materials College of Material Science &amp; Engineering Beijing University of Chemical Technology  Beijing China"},{"name":"Engineering Research Center of Elastomer Materials Energy Conservation and Resources Ministry of Education Beijing University of Chemical Technology  Beijing 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