Reference : New ligands for the living high-molecular-weight anionic (co)polymerization of acryla...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/4406
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
English
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 mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
25-Aug-1998
Macromolecules
Amer Chemical Soc
31
17
5577-5581
Yes (verified by ORBi)
International
0024-9297
Washington
[en] anionic polymerization
[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.
Center for Education and Research on Macromolecules (CERM)
Elf Atochem ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
Researchers
http://hdl.handle.net/2268/4406
10.1021/ma980089h
http://pubs.acs.org/doi/pdf/10.1021/ma980089h

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