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Rapid Commun."],"published-print":{"date-parts":[[2021,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Fabrication of multifunctional porous fibers with excellent mechanical properties has attracted abundant attention in the fields of personal thermal management textiles and smart wearable devices. However, the high cost and harsh preparation environment of the traditional solution\u2013solvent phase separation method for making porous fibers aggravates the problems of resource consumption and environmental pollution. Herein, a microextrusion process that combines environmentally friendly CO<jats:sub>2<\/jats:sub> physical foaming with fused deposition modeling technology is proposed, via the dual features of high gas uptake and restricted cell growth, to implement the continuous production of porous polyetheretherketone (PEEK) fibers with a production efficiency of 10.5\u00a0cm s<jats:sup>\u22121<\/jats:sup>. The porous PEEK fiber exhibits excellent stretchability (234.8% strain) and good high\u2010temperature thermal insulation property. The open\u2010cell structure on the surface is favorable for the adsorption to achieve superhydrophobicity (154.4\u00b0) and high\u2010efficiency photocatalytic degradation of rhodamine B (90.4%). Moreover, the parameterized controllability of the cell structure is beneficial to widening the multifunctional window. In short, the first porous PEEK physical foaming fiber, which opens up a new avenue for the application expansion, especially in the medical field, is realized.<\/jats:p>","DOI":"10.1002\/marc.202100463","type":"journal-article","created":{"date-parts":[[2021,9,7]],"date-time":"2021-09-07T09:17:52Z","timestamp":1631006272000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Robust and Multifunctional Porous Polyetheretherketone Fiber Fabricated via a Microextrusion CO<sub>2<\/sub> Foaming"],"prefix":"10.1002","volume":"42","author":[{"given":"Mengya","family":"Li","sequence":"first","affiliation":[{"name":"School of Materials Science and Engineering Sun Yat\u2010sen University  Guangzhou 510275 P. R. 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