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Synthesis and polymerisation of new multifunctional urethane methacrylates

1999; Wiley; Volume: 265; Issue: 1 Linguagem: Inglês

10.1002/(sici)1522-9505(19990301)265

1522-9505

Norbert Moszner, Thomas Völkel, Urs Karl Fischer, Alfred Michael Klester, Volker Rheinberger,

Photopolymerization techniques and applications

New multifunctional urethane methacrylates were synthesised by addition of methacrylates containing a hydroxy group, such as 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate or glycerol dimethacrylate, to α,α,α′,α′-tetramethyl-m-xylylene diisocyanate. The structure of the new monomers was confirmed by IR, 1H NMR and 13C NMR spectroscopy. The photopolymerisation of the crosslinking monomers in bulk using camphorquinone as photoinitiator results in transparent, crosslinked polymers. Neue multifunktionelle Urethanmethacrylate wurden durch Addition von hydroxygruppenhaltigen Methacrylaten, wie 2-Hydroxyethylmethacrylat, 2-Hydroxypropylmethacrylat oder Glycerindimethacrylat, an α,α,α′,α′-Tetramethyl-m-xylylendiisocyanat hergestellt. Die Struktur der neuen Monomeren konnte durch IR-, 1H NMR- und 13C NMR-Spektroskopie bestätigt werden. Die Photopolymerisation der Vernetzermonomeren in Substanz führte mit Campherchinon als Photoinitiator zu transparenten Polymernetzwerken.