N-alkoxy-4,4-dioxy-polyalkyl-piperidine compounds, their corresponding n-oxides and controlled radical polymerization therewith
申请人:——
公开号:US20040082742A1
公开(公告)日:2004-04-29
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 porcess for polymerization are also subjects of the present invention.
本发明涉及精选的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,这些衍
生物在4位被两个氧原子取代,形成开链或环酮结构,可聚合组合物包括a)至少一种
乙烯基不饱和单体和b)上述
哌啶衍
生物。本发明的其他方面是一种
乙烯基不饱和单体的聚合工艺,以及 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
生物的使用,这些衍
生物在 4 位被两个氧原子取代,形成开链或环酮结构,用于受控聚合。本发明还涉及中间体 N-氧代衍
生物、N-氧代衍
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工艺。