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Rapid Commun."],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Aerogel fibers with different functionalities can now be fabricated from different sources. However, it is still a great challenge to make tough and recyclable aerogel fibers via a simple approach. In this study, poly(phthalazinone ether sulfone ketone) containing biphenyl moieties (PPBESK) aerogel fibers were fabricated via a direct method: wet spinning and ambient pressure drying. The fabricated aerogel fibers not only have a superb toughness of 24.3\u00a0MJ\/m\n                    <jats:sup>3<\/jats:sup>\n                    but also exhibit an excellent recyclability that presents an opportunity to establish a sustainable circular economy. In addition, the universality of the fabrication method is validated by preparing another three types of aerogel fibers: PPBES, PPESK, and PPESS, which have a similar molecular structure to PPBESK. And last but not least, the aerogel fibers have a good thermal insulation performance at high temperatures. Overall, this study offers a promising strategy for developing tough and recyclable aerogel fibers.\n                  <\/jats:p>","DOI":"10.1002\/marc.70270","type":"journal-article","created":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T07:20:26Z","timestamp":1775028026000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Tough and Recyclable Poly(phthalazinone ether sulfone ketone) Aerogel Fibers"],"prefix":"10.1002","volume":"47","author":[{"given":"Chen","family":"Zhuo","sequence":"first","affiliation":[{"name":"State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology  Dalian China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fangxin","family":"Zou","sequence":"additional","affiliation":[{"name":"School of Textile and Material Engineering Dalian Polytechnic University  Dalian 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