Article (Scientific journals)
Polymerization of epsilon-caprolactone initiated by Y alkoxide grafted onto porous silica
Martin, Eric; Dubois, Philippe; Jérôme, Robert
2003In Macromolecules, 36 (19), p. 7094-7099
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Keywords :
ring-opening polymerization (ROP); lactone
Abstract :
[en] Ring-opening polymerization of c-caprolactone has been initiated by Y isopropoxide grafted onto silica, in the presence of 2-propanol, in toluene at 40degreesC. The degree of polymerization is controlled by the initial monomer/(alcohol + alkoxide) molar ratio. Deactivation of the chains by an alcohol is essential for them to be detached from the support and to be collected totally free of metal and silica residues. The alkoxide is also regenerated at the surface of the support, which allows for recycling the catalyst.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Martin, Eric;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Dubois, Philippe ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Polymerization of epsilon-caprolactone initiated by Y alkoxide grafted onto porous silica
Publication date :
23 September 2003
Journal title :
Macromolecules
ISSN :
0024-9297
eISSN :
1520-5835
Publisher :
Amer Chemical Soc, Washington, United States - Washington
Volume :
36
Issue :
19
Pages :
7094-7099
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Omnichem, Louvain-la-Neuve, Belgium
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
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