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Homogeneous, monodispersed furan-melamine particles performing reversible binding and forming networks

  • Homogeneous and monodispersed furan functionalised melamine-formaldehyde particles were produced. As a precursor, 2-chloro-1,3,5-triazine-2,4-diamine (Mel) was selectively substituted with 2-aminomethyl furan (Fu) units in a convenient one step reaction. The pure reaction product Fu-Mel, which was used without further purification, was reacted with formaldehyde by conventional sol-gel condensation in aqueous medium to yield chemically homogenous, spherically shaped and monodispersed particles. The particles were analysed using ATR-FT-IR, Raman, 1H and 13C NMR spectroscopy, TGA, SEM and DSC measurements. The reactivity of the furan groups located at the particle surface was studied by performing a thermoreversible Diels-Alder cycloaddition reaction with bis-maleimide coupling agents. The formed networks showed thermoreversible behaviour, which was characterised by dynamic IR and DSC measurements.

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Author of HS ReutlingenBrodbeck, Björn; Kandelbauer, Andreas
Erschienen in:European polymer journal : EPJ
Place of publication:New York, NY
Document Type:Journal article
Publication year:2019
Tag:Diels-Alder reaction; furan-functionalised; melamine-formaldehyde; particle; thermoset
Page Number:11
First Page:158
Last Page:168
DDC classes:670 Industrielle und handwerkliche Fertigung
Open access?:Nein