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Polyamine–diazirine conjugates for use as primers In UHMWPE–epoxy composite materials

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dc.contributor.authorNazir, Rashid
dc.contributor.authorBi, Liting
dc.contributor.authorMusolino, Stefania F.
dc.contributor.authorMargoto, Olivia H.
dc.contributor.authorÇelebi, Kuthan
dc.contributor.authorMobuchon, Christophe
dc.contributor.authorTakaffoli, Mahdi
dc.contributor.authorMilani, Abbas S.
dc.contributor.authorFalck, Greg
dc.contributor.authorWulff, Jeremy E.
dc.date.accessioned2026-02-06T23:43:32Z
dc.date.available2026-02-06T23:43:32Z
dc.date.issued2022
dc.description.abstractUltra-high molecular weight polyethylene (UHMWPE) fibers show promise for use in fiber reinforced polymer composites, but have poor interfacial adhesion to the epoxy resin that would serve as the polymer matrix. Here we describe the development of a diazirine-grafted polyamine that can be used as a topically applied primer for UHMWPE fibers. Activation of the diazirine groups on the primer initiates C–H bond insertion on the polyethylene fiber, leading to strong covalent bonds between the fiber and the polyamine coating. The covalently functionalized surface can then engage in nucleophilic addition reactions with epoxy resin—resulting in increased bonding to the epoxy matrix (demonstrated through lap-shear experiments) and increased performance for fiber reinforced composite materials (demonstrated through lamination rates and short-beam stress measurements).
dc.description.reviewstatusReviewed
dc.description.scholarlevelFaculty
dc.description.sponsorshipWe gratefully acknowledge funding from Innovate BC (grant 184-RND8-2019). L.B. and S.F.M. additionally thank Mitacs Canada (grants IT11982 and IT17318) for fellowships, and J.W. thanks the Canada Research Chairs program (file number 950-231376) for salary support.
dc.identifier.citationR. Nazir, L. Bi, S. F. Musolino, O. H. Margoto, K. Çelebi, C. Mobuchon, M. Takaffoli, A. S. Milani, G. Falck, and J. E. Wulff (2022) Polyamine–Diazirine Conjugates for Use as Primers in UHMWPE–Epoxy Composite Materials. ACS Applied Polymer Materials, 4, 1728–1742. https://pubs.acs.org/doi/full/10.1021/acsapm.1c01577
dc.identifier.urihttps://doi.org/10.1021/acsapm.1c01577
dc.identifier.urihttps://hdl.handle.net/1828/23175
dc.language.isoen
dc.publisherACS Applied Polymer Materials
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectpolymer composites
dc.subjectUHMWPE
dc.subjectdiazirines
dc.subjectcrosslinking
dc.subjectprimers
dc.subjectCentre for Advanced Materials and Related Technology (CAMTEC)
dc.subject.departmentDepartment of Chemistry
dc.titlePolyamine–diazirine conjugates for use as primers In UHMWPE–epoxy composite materials
dc.typeArticle

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