Soft Segment Engineering of Bio-Based Poly(propylene 2,5- furandicarboxylate) for Enhanced Toughness and Spinnability

Soft Segment Engineering of Bio-Based Poly(propylene 2,5- furandicarboxylate) for Enhanced Toughness and Spinnability | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Soft Segment Engineering of Bio-Based Poly(propylene 2,5- furandicarboxylate) for Enhanced Toughness and Spinnability Hsu-I Mao, Sheng-Yuan Chiu, Shang-Hua Yu, Ke-Ling Tuan, Kuan-Yi Wu, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9124257/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 18 You are reading this latest preprint version Abstract Furan-based polyesters are attractive biobased alternatives to petroleum-derived materials, but their practical use is limited by intrinsic brittleness and slow crystallization. In this study, poly(tetramethylene ether) glycol (PTMEG) was incorporated into poly(propylene 2,5-furandicarboxylate) (PPF) to balance rigidity, toughness, and spinnability. Structural characterization confirmed successful copolymer formation, while thermal analysis revealed that PTMEG enhances chain mobility—dropping T g from 62.26°C to 2.94°C—without sacrificing thermal robustness (T d5% > 350°C). The copolyesters exhibited a dramatic brittle-to-ductile transition; notably, PPF-20PTMEG achieved an optimal balance with 544.05% elongation and 26.68 MPa tensile strength, while impact strength increased from 0.76 to 61.90 kJ/m². Although PTMEG lowered the cold-crystallization temperature from 109.0°C to 59.8°C, excessive loading (above 30 wt%) impaired melt-spinnability and fiber surface integrity. These findings establish 20 wt% PTMEG as the ideal composition window for high-performance biobased furan polyester elastomers and fibers. Poly(propylene 2 5-furandicarboxylate) Poly(tetramethylene ether) glycol Bio-based Melt spinning Full Text Additional Declarations No competing interests reported. Supplementary Files SupportingInfoJPolymEnviron.docx Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 13 Apr, 2026 Reviews received at journal 12 Apr, 2026 Reviews received at journal 10 Apr, 2026 Reviews received at journal 08 Apr, 2026 Reviews received at journal 06 Apr, 2026 Reviews received at journal 03 Apr, 2026 Reviews received at journal 27 Mar, 2026 Reviewers agreed at journal 24 Mar, 2026 Reviewers agreed at journal 22 Mar, 2026 Reviewers agreed at journal 20 Mar, 2026 Reviewers agreed at journal 19 Mar, 2026 Reviewers agreed at journal 19 Mar, 2026 Reviewers agreed at journal 19 Mar, 2026 Reviewers agreed at journal 17 Mar, 2026 Reviewers invited by journal 17 Mar, 2026 Editor assigned by journal 16 Mar, 2026 Submission checks completed at journal 16 Mar, 2026 First submitted to journal 14 Mar, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-9124257","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":607776995,"identity":"05a6dc1e-394c-4466-9958-d6bb045d5f2e","order_by":0,"name":"Hsu-I Mao","email":"","orcid":"","institution":"National Taipei University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Hsu-I","middleName":"","lastName":"Mao","suffix":""},{"id":607776997,"identity":"5d3fe655-68d8-48d3-adff-2d4c519e6f91","order_by":1,"name":"Sheng-Yuan Chiu","email":"","orcid":"","institution":"National Taipei University of 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In this study, poly(tetramethylene ether) glycol (PTMEG) was incorporated into poly(propylene 2,5-furandicarboxylate) (PPF) to balance rigidity, toughness, and spinnability. Structural characterization confirmed successful copolymer formation, while thermal analysis revealed that PTMEG enhances chain mobility\u0026mdash;dropping T\u003csub\u003eg\u003c/sub\u003e from 62.26\u0026deg;C to 2.94\u0026deg;C\u0026mdash;without sacrificing thermal robustness (T\u003csub\u003ed5%\u003c/sub\u003e \u0026gt; 350\u0026deg;C). The copolyesters exhibited a dramatic brittle-to-ductile transition; notably, PPF-20PTMEG achieved an optimal balance with 544.05% elongation and 26.68 MPa tensile strength, while impact strength increased from 0.76 to 61.90 kJ/m\u0026sup2;. Although PTMEG lowered the cold-crystallization temperature from 109.0\u0026deg;C to 59.8\u0026deg;C, excessive loading (above 30 wt%) impaired melt-spinnability and fiber surface integrity. 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