N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding N-oxides and controlled radical polymerization therewith
申请人:Nesvadba Peter
公开号:US20060149011A1
公开(公告)日:2006-07-06
The present invention relates to selected 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure, a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) said piperidine derivatives. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure for controlled polymerization. The intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator, as well as a process for polymerization are also subjects of the present invention.
本发明涉及选择的1-烷氧基-2,2,6,6四甲基哌啶,1-烷氧基-2,2二乙基-6,6二甲基哌啶和1-烷氧基-2,6二乙基-2,3,6二甲基哌啶衍生物,其在4位被两个氧原子取代,形成开链或环状璃缩酮结构,包括a)至少一种乙烯基不饱和单体和b)所述哌啶衍生物的可聚合组合物。本发明的其他方面包括聚合乙烯基不饱和单体的方法,以及使用1-烷氧基-2,2,6,6四甲基哌啶、1-烷氧基-2,2二乙基-6,6二甲基哌啶和1-烷氧基-2,6二乙基-2,3,6二甲基哌啶衍生物,其在4位被两个氧原子取代,形成开链或环状璃缩酮结构,用于受控聚合。中间体N-氧基衍生物,N-氧基衍生物与乙烯基不饱和单体和自由基引发剂的组合物,以及聚合方法也是本发明的对象。