| 摘要 |
The invention relates to an initiator system for radical polymerizations, which is characterized in that a combination of compounds of general formulas (I) and (II) is used, wherein: R', R'', R''' and R'''', are selected independently of one another, and represent; a) branched and unbranched C1 to C18 alkyl radicals, C3 to C18 alkenyl radicals, C3 to C18 alkynyl radical; b) C1 to C18 alkyl radicals, C3 to C18 alkenyl radicals, C3 to C18 alkynyl radicals, which are all substituted for at least one OH group or for a halogen atom or for a silyl ether; c) C2-C18 hetero-alkyl radicals having at least one O atom and/or an NR group in the carbon chain, whereby R is selected from one of groups a), b) or d) to g); d) C1-C18 alkyl radicals, C3-C18 alkenyl radicals, C3-C18 alkynyl radical, which are all substituted for at least one ester group, amine group, carbonate group and/or epoxy group and/or for sulfur and/or for sulfur compounds, especially thioether or dithio compounds; e) C3-C12 cycloalkyl radicals; f) C6-C10 aryl radical, and; g) hydrogen. X represents a group having at least one carbon atom and is such that free radicals X. derived from X can initiate a polymerization of ethylenically unsaturated monomers.
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