1-alkoxy-polyallkyl-piperidine derivatives and their use as polymerization regulators

US-26280499-A
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(en)The present invention relates to 1-alkoxy-polyalkyl-piperidine derivatives containing a structural element of formula (I)
wherein
G 1 , G 2 , G 3 , G 4 are independently C 1 -C 6 alkyl with the proviso that at least one is not methyl or G 1 and G 2 or G 3 and G 4 , or G 1 and G 2 and G 3 and G 4 together form a C 5 -C 12 cycloalky group;
G 5 , G 6 independently are H, C 1 -C 18 alkyl, phenyl, naphthyl or a group COOC 1 -C 18 alkyl and X represents a group such that the free radical X. derived from X is capable of initiating polymerization of ethylenically unsaturated monomers, with the proviso that compounds A1 and A2 are excluded
Further subjects of the invention are a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) a 1-alkoxy-polyalkyl-piperidine derivative, a process for polymerizing ethylenically unsaturated monomers, and the use of 1-alkoxy-polyalkyl-piperidine derivatives for controlled polymerization. The intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator X., as well as a process for polymerization are also subjects of the present invention.

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