N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding N-oxides and controlled radical polymerization therewith

摘要

The invention two oxygen atoms and substituted by a 4-position selected from 1-alkoxy-2,2,6,6-forming an open chain or cyclic ketal structure-tetramethyl-piperidine, 1-alkoxy-2, 2-diethylamino-6,6-dimethyl-piperidine and 1-alkoxy-2,6-dimethyl-ethyl -2,3,6- piperidine derivatives, a) one or more ethylenically unsaturated monomers, and b) the blood It relates to a polymerizable composition comprising a piperidine derivative. Another feature of the present invention, a method of polymerizing an ethylenically unsaturated monomer, and the two oxygen atoms and substituted by a 4-position in the 1-alkoxy -2,2,6,6 forming an open chain or cyclic ketal structure -tetramethyl-piperidine, 1-alkoxy-2,2-diethyl-6,6-dimethyl-piperidine and 1-alkoxy-2,6-dimethyl-ethyl -2,3,6- piperidine derivatives of It relates to a polymerization reaction control purposes. Intermediate N- oxyl derivative, N- oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator and the composition of the polymerization, as well as methods are also included in the object of the present invention. ; 1-alkoxy-2,2,6,6-tetramethylpiperidine, 1-alkoxy-2,2-diethyl-6,6-dimethyl-piperidine and 1-alkoxy-2,6-di-ethyl-2 , 3,6-dimethyl-piperidine derivatives, free radical, N- oxyl derivatives.