ORBi: Zundel Thomas - New ligands for the living high-molecular-weight anionic (co)polymerization of acrylates in toluene at 0°C.1,2 3. Ligation of sec-butyllithium by lithium silanolates

Reference : New ligands for the living high-molecular-weight anionic (co)polymerization of acrylates...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/4406

Title :	New ligands for the living high-molecular-weight anionic (co)polymerization of acrylates in toluene at 0°C.1,2 3. Ligation of sec-butyllithium by lithium silanolates
Language :	English
Author, co-author :	Zundel, Thomas [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Teyssié, Philippe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Jérôme, Robert [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Publication date :	25-Aug-1998
Journal title :	Macromolecules
Publisher :	Amer Chemical Soc
Volume :	31
Issue/season :	17
Pages :	5577-5581
Audience :	International
ISSN :	0024-9297
City :	Washington
Keywords :	[en] anionic polymerization
Abstract :	[en] sec-Butyllithium combined with a new family of ligands, (i.e., lithium silanolates), has been used to initiate the ligated anionic polymerization of n-butyl acrylate (BuA) in toluene at low temperature. Compared to other μ-ligands, sBuMe2SiOLi is a more efficient stabilizer of the active centers. Thus, under selectively chosen reaction conditions, the polymerization proceeds quantitatively at −40 °C, producing a high-molecular-weight polymer with narrow-molecular-weight distribution (Mw/Mn < 1.2). When the copolymerization of BuA is initiated by a living {PMMALi, 5·sBuDLi} in toluene at −78 °C, the experimental data agree with a well-controlled block copolymerization reaction, since the final molecular-weight distribution is very narrow (Mw/Mn ≤ 1.1) and the polymerization efficiency very high.
Research units :	Center for Education and Research on Macromolecules (CERM)
Funders :	Elf Atochem ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/4406
DOI :	10.1021/ma980089h
Other URL :	http://pubs.acs.org/doi/pdf/10.1021/ma980089h

File(s) associated to this reference

Fulltext file(s):

	File	Commentary	Version	Size	Access
Restricted access	Zundel T 1998 Macromolecules 5577.pdf		Publisher postprint	74.82 kB	Request copy

All documents in ORBi are protected by a user license.

Dspace v1.5