Preparation of functionalized alkoxyamine initiator and its use

[en] A one-pot process for the preparation of functional alkoxyamines of the general formula (I), 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.

Disciplines :

Chemistry
Materials science & engineering

Inventor :

Detrembleur, Christophe ; Bayer AG

Gross, Thomas

Meyer, Rolf-Volker

Language :

English

Title (54) :

Preparation of functionalized alkoxyamine initiator and its use

Publication date (43-45) :

25 December 2003

Filing date (22) :

19 June 2003

Patent/publication number (10-11) :

US 2003236368

Patent status (13) :

Priority number (30) :

EP20020013949 20020625

International classification (IPC) (51) :

C07C239/20; C07D211/94; C07D295/24; C08F2/00; C08F20/00; C08F4/00; C08F4/40; (IPC1-7): C07C239/12; C07C255/62; C07D207/46; C07D211/20; C07D223/08; C08F2/00; C08F4/00

European classification (ECLA) (52) :

C07D211/94; C07D295/24; C08F4/00

Applicant (71) :

Bayer AG

Publication organism (19) :

United States Patent

Additional URL :

http://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=2003236368A1&KC=A1&FT=D&date=20031225&DB=EPODOC&locale=fr_be

Available on ORBi :

since 20 June 2011

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