Exploring the Anticorrosive Capabilities of new hybrid epoxy/Br: A Comprehensive Study

Exploring the Anticorrosive Capabilities of new hybrid epoxy/Br: A Comprehensive Study | 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 Exploring the Anticorrosive Capabilities of new hybrid epoxy/Br: A Comprehensive Study Naoual El-Aouni, Omar Dagdag, Abed slam Amri, Hansang Kim, Nadi Dkhireche, and 4 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3296036/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 30 Nov, 2023 Read the published version in Environmental Science and Pollution Research → Version 1 posted 5 You are reading this latest preprint version Abstract Corrosion inhibition of carbon steel structures in acidic environments is imperative across various sectors. This study investigated a novel epoxy resin, bisphenol A tetrabromo dipropoxy dianiline tetraglycidyl ether (TGEDADPTBBA), as an new hybrid epoxy/Br inhibitor for E24 carbon steel corrosion in 1.0 M hydrochloric acid using multi-pronged experimental and theoretical methods. Potentiodynamic polarization revealed TGEDADPTBBA acted as a mixed-type inhibitor, achieving 95–97% inhibition efficiency at 10 − 3 M. EIS showed TGEDADPTBBA suppressed charge transfer resistance, implying decreased corrosion rate. EFM provided additional evidence of inhibition via reduced corrosion current density, diffusion impedance, and corrosion rate. TGEDADPTBBA's adsorption on steel followed the Langmuir isotherm, indicating a maximum monolayer. SEM/EDS showed TGEDADPTBBA formed a protective film inhibiting elemental dissolution. Quantum chemical calculations and molecular dynamics simulations were synergized to gain molecular-level insight. Electron density mapping revealed TGEDADPTBBA's heteroatoms served as adsorption sites. Dynamics revealed bioinspired intermolecular chemical and Van der Waals interactions facilitated stable layer formation. Energetically, TGEDADPTBBA adsorption was favorable. Collectively, this multi-pronged study employing polymer science, surface science, and computational chemistry demonstrated TGEDADPTBBA's broad applicability as a corrosion inhibitor for E24 carbon steel infrastructure. In particular, TGEDADPTBBA's synergistic performance in inhibiting charge transfer, diffusion, and film formation positions it as a green and cost-effective alternative to toxic chromates. Epoxy resin Corrosion inhibition E24 carbon steel 1.0 M HCl Mixed inhibitor TGEDADPTBBA Full Text Supplementary Files SI.docx Cite Share Download PDF Status: Published Journal Publication published 30 Nov, 2023 Read the published version in Environmental Science and Pollution Research → Version 1 posted Reviewers agreed at journal 20 Sep, 2023 Reviewers invited by journal 16 Sep, 2023 Editor invited by journal 15 Sep, 2023 Editor assigned by journal 04 Sep, 2023 First submitted to journal 29 Aug, 2023 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-3296036","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":233972444,"identity":"c3eb93af-327a-41d1-84ae-469120ad43d3","order_by":0,"name":"Naoual El-Aouni","email":"","orcid":"","institution":"Ibn Tofail University: Universite Ibn Tofail","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Naoual","middleName":"","lastName":"El-Aouni","suffix":""},{"id":233972445,"identity":"ee1ada9e-c0b3-43d2-8f56-e71a6ce8fb7d","order_by":1,"name":"Omar Dagdag","email":"","orcid":"","institution":"Gachon 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