| 摘要 |
The invention provides photopolymerizable compositions comprising A at least one ethylenically unsaturated photopolymerizable fluocarbon compound selected from polyfluoroalkyl monoacrylates, polyfluoroalkyl monomethacrylatesor polyfluoroalkyl­diacrylates and B at least one photoinitiator of the formula I R is a radical of the formula II s is a number of 1 to 4, r is a number of 1 to 2 Y is a single bond or is a divalent linker group A if s is 1, is a radical A0, where A0 is C1-C3oalkyl, C1-C30alkenyl, C1-C30alkynyl or C1-C30aralkyl the radicals being substituted by at least two fluorine atoms and optionally further substituted by OH-, C1-C4alkoxy-, phenyl-, naphthyl-, halogen-, CN-, SR7-, NR8R9- and/or -OCOR10- and the radical A0 is uninterrupted or interrupted by one or more -O-, -S- or -NR12- A if s is > 1, is a radical A1 where A1 is C1-C30alkylene, C1-C3oalkenylene, Cl-C3oalkynylene or C1-C30aralkylene, the radicals being substituted by at least two fluorine atoms and optionally further substituted by OH-, C1-C4alkoxy-, phenyl-, naphthyl-, halogen-, CN-, SR7-, NR8R9- and/or -OCOR10- and the radical A1 is uninterrupted or interrupted by one or more -0-, -S- or -NR12-.
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