Fabrication and Foaming Behavior of Branched Poly (butylene succinate)

Fabrication and Foaming Behavior of Branched Poly (butylene succinate) | 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 Fabrication and Foaming Behavior of Branched Poly (butylene succinate) Ruiheng He, Yijie Chen, Wei Cui, Jichun Jiang, Zilong Lv, Tao Liu, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7084907/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 16 Dec, 2025 Read the published version in Journal of Polymer Research → Version 1 posted 5 You are reading this latest preprint version Abstract The linear structure, narrow molecular weight distribution, and low molecular weight of poly (butylene succinate) (PBS) result in poor melt viscoelasticity, which significantly affects its supercritical CO₂ foaming performance. In this paper, benzoyl peroxide (BPO) was introduced into PBS via reactive extrusion to prepare PBS with branched structure. Molecular weight test results showed that the molecular weight of PBS increased with increasing BPO concentration, from 103,877 g/mol to 181,409 g/mol. The results of shear and extensional rheology indicated that increasing BPO concentration enhanced the branching degree of PBS and promoted strain hardening behavior. Supercritical CO₂ foaming results showed that the foaming performance of the modified PBS has been significantly improved. The cells are regular and uniform, and the expansion ratio can reach up to 31.9 times, while the unmodified PBS can only reach up to 10.1 times. The method used in this paper is simple, efficient and does not form gel formation, deepening the understanding of the foaming behavior of PBS, and has significant industrial application value for the preparation of PBS materials suitable for foaming. Poly (butylene succinate) Branching Supercritical CO2 foaming Full Text Cite Share Download PDF Status: Published Journal Publication published 16 Dec, 2025 Read the published version in Journal of Polymer Research → Version 1 posted Reviewers agreed at journal 15 Aug, 2025 Reviewers invited by journal 12 Aug, 2025 Editor invited by journal 10 Aug, 2025 Editor assigned by journal 21 Jul, 2025 First submitted to journal 21 Jul, 2025 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. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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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-7084907","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":499203671,"identity":"f04840e1-bc65-4709-9502-2aca9ae0b18e","order_by":0,"name":"Ruiheng He","email":"","orcid":"","institution":"","correspondingAuthor":false,"prefix":"","firstName":"Ruiheng","middleName":"","lastName":"He","suffix":""},{"id":499203672,"identity":"b4d797bc-181c-4af3-be2a-65c712456f56","order_by":1,"name":"Yijie 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