NOVEL CATALYTIC SYSTEMS FOR THE RING-OPENING (CO)POLYMERIZATION OF LACTONES
申请人:Bourissou Didier
公开号:US20110054144A1
公开(公告)日:2011-03-03
The present invention relates to the use of a system composed of a base and of a sulphonamide, as a catalyst for the ring-opening (co)polymerization of lactones. The present invention also relates to novel sulphonamides and to a process for the ring-opening (co)polymerization of lactones comprising the use of sulphonamides in combination with a base as a catalytic system.
[EN] NOVEL CATALYTIC SYSTEMS FOR THE RING-OPENING (CO)POLYMERIZATION OF LACTONES<br/>[FR] NOUVEAUX SYSTÈMES CATALYTIQUES POUR LA (CO)POLYMÉRISATION DE LACTONES PAR OUVERTURE DE CYCLE
申请人:IPSEN PHARMA SAS
公开号:WO2009138589A1
公开(公告)日:2009-11-19
La présente invention concerne l'utilisation d'un système constitué d'une base et d'un sulfonamide, en tant que catalyseur de (co)polymérisation de lactones par ouverture de cycle. La présente invention concerne également de nouveaux sulfonamides et un procédé de (co)polymérisation de lactones par ouverture de cycle comprenant l'utilisation de sulfonamides en association avec une base comme système catalytique.
Controlled ring-opening polymerization of lactide by bis-sulfonamide/amine associations: Cooperative hydrogen-bonding catalysis
作者:Aurélie Alba、Aurélia Schopp、Anne-Paula De Sousa Delgado、Roland Cherif-Cheikh、Blanca Martín-Vaca、Didier Bourissou
DOI:10.1002/pola.23852
日期:2010.2.15
The bis‐sulfonamide m‐C6H4(SO2NHPh)2 efficiently promotes the ring‐opening polymerization of lactide when combined with tertiary amines, such as N,N‐dimethylaminopyridine. Polylactides of controlled molecular weights (Mn up to 17,700 g mol−1) and very narrow molecular weight distributions (Mw/Mn < 1.11) are obtained under mild conditions and in a living fashion. The reaction takes place through a bifunctional