Reference : Beneficial effect of triphenylphosphine on the bulk polymerization of L,L-lactide pro...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/4396
Beneficial effect of triphenylphosphine on the bulk polymerization of L,L-lactide promoted by 2-ethylhexanoic acid tin (II) salt
English
Degée, Philippe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Dubois, Philippe [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jacobsen, S. [University of Stuttgart > > Institut für Kunststofftechnologie > >]
Fritz, H.-G. [University of Stuttgart > > Institut für Kunststofftechnologie > >]
Jérôme, Robert mailto [Univerrsity of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
15-Jul-1999
Journal of Polymer Science. Part A, Polymer Chemistry
John Wiley & Sons
37
14
2413-2420
Yes (verified by ORBi)
International
0887-624X
Hoboken
[en] ring-opening polymerization (ROP) ; lactone
[en] The ring-opening polymerization of L,L-lactide has been studied in bulk using 2-ethylhexanoic acid tin (II) salt, Sn(Oct)2, as a catalyst over a wide range of temperature and monomer to Sn(Oct)2 molar ratio. Although Sn(Oct)2 was known to initiate a fast polymerization, it is reported now that some Lewis bases, particularly triphenylphosphine (P()3), can increase further the polymerization rate, without any detrimental effect on the polylactide thermal stability. In order to optimize the balance between propagation and competing depolymerization reactions, the experimental conditions, i.e., temperature and concentration of Sn(Oct)2 and P()3 have been optimized. The up-scaling of the laboratory experiments to reactive extrusion has proved to be feasible, which demonstrates the efficiency of this catalytic system to produce polylactide in a continuous one-stage polymerization process.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Commission européenne
Researchers
http://hdl.handle.net/2268/4396
10.1002/(SICI)1099-0518(19990715)37:14<2413::AID-POLA15>3.0.CO;2-#
http://www3.interscience.wiley.com/cgi-bin/fulltext/62003254/PDFSTART

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