Nazir, RashidMusolino, Stefania F.MacFarlane, Madisen A.Wulff, Jeremy E.2026-02-062026-02-062024R. Nazir, S. F. Musolino, M. A. MacFarlane & J. E. Wulff (2024) Surface Modification and Dyeing of Ultra-high-molecular-weight Polyethylene Fabrics using Diazirine-Based Polymers. ACS Applied Polymer Materials, 6, 1688–1697. https://pubs.acs.org/doi/full/10.1021/acsapm.3c02531https://hdl.handle.net/1828/23174Ultra-high-molecular weight polyethylene (UHMWPE) fibers are valued for their high strength-to-weight ratio and are employed in a wide variety of commercial applications. However, because of its low surface energy, UHMWPE can fail in certain applications, such as fiber-reinforced composites. This is due to its poor interfacial adhesion with polar matrices, making it challenging to incorporate into composites and/or retain polar dyes or colorants. Herein, we describe the use of polyamine primers for coating UHMWPE weaves, covalently bonding the aliphatic chains through C−H insertion, leading to strong covalent interactions between fabric and polyamines. We further demonstrate that the polyamine-coated UHMWPE surfaces can successfully react with epoxy resin through nucleophilic addition reactions to enable the production of epoxy composites. Furthermore, we show the use of polyamine-coated UHMWPE in secondary functionalization with amine-reactive compounds, such as dyes, through covalent linkages that result in very strong color fastness.enAttribution-NonCommercial-NoDerivatives 4.0 InternationalUHMWPEdiazirinescrosslinkingprimersdyesCentre for Advanced Materials and Related Technology (CAMTEC)ArticleDepartment of Chemistry