PREPARATION OF FUNCTIONALIZED ALKOXYAMINE INITIATOR AND ITS USE
申请人:——
公开号:US20030236368A1
公开(公告)日:2003-12-25
A one-pot process for the preparation of functional alkoxyamines of the general formula (I),
1
is disclosed. The process entails (1) reacting an oxidizing agent with a sterically hindered secondary amine to produce an aqueous phase and a nitroxyl radical (2) removing the aqueous phase and adding to the nitroxyl radical one or more vinyl monomer(s) conforming to a formula and a system which produces free radicals. Also disclosed is a process of polymerizing monomers using the functional alkoxyamine.
In-situ polymerization of monoethylenically unsaturated monomers with secondary amines
申请人:——
公开号:US20040122270A1
公开(公告)日:2004-06-24
A process for the preparation of any of well-defined homopolymers, random and block copolymers is disclosed. The process that entails forming a mixture of monomers, a hindered secondary amine and an oxidizing agent is characterized in the absence of any additional free-radical initiator.
Process for the synthesis for alkoxy amines and their use in controlled radical polymerization
申请人:——
公开号:US20040002606A1
公开(公告)日:2004-01-01
A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I)
1
is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered secondary amine of the general formula (III),
2
in a water-containing medium to form a reaction product and an aqueous phase, (2) removing of the aqueous phase, and (3) (adding to the reaction product a free-radical initiator (B) under conditions that promote the decomposition of the initiator to generate free radicals. Also disclosed is a process for polymerizing monomers, the process using the alkoxyamine prepared by the inventive process.
One-pot process for the preparation of functionalized alkoxyamines
申请人:Bayer Aktiengesellschaft
公开号:EP1375457A1
公开(公告)日:2004-01-02
The present invention relates to a new one-pot process for the preparation of functionalized alkoxyamine initiators of the formula (I)
from amines of the formula (II)
and to a process of controlled radical polymerization using the functionalized alkoxyamine as initiators. In the above formulae, R1-R5 have the meanings given in the description.
本发明涉及一种以式(II)胺为原料制备式(I)官能化烷氧胺引发剂的新的一步法工艺
式 (II) 的胺制备功能化烷氧基胺引发剂的新一锅工艺
以及使用功能化烷氧基胺作为引发剂的受控自由基聚合工艺。在上式中,R1-R5 具有说明中给出的含义。
A new process for the synthesis of alkoxyamines active in controlled radical polymerization
申请人:Bayer Aktiengesellschaft
公开号:EP1375476A1
公开(公告)日:2004-01-02
The present invention relates to a new process for the preparation of alkoxyamine initiators and to a process of radical polymerization using the alkoxyamine initiators as intermediates.