Article (Scientific journals)
Synthesis of biodegradable poly-epsilon-caprolactone microspheres by dispersion ring-opening polymerization in supercritical carbon dioxide
Grignard, Bruno; Stassin, Fabrice; Calberg, Cédric et al.
2008In Biomacromolecules, 9 (11), p. 3141-3149
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Keywords :
green technology; supercritical carbon dioxide; ring-opening polymerization (ROP); lactone
Abstract :
[en] A series of fluorinated diblock and triblock copolymers of poly(ε-caprolactone) and poly(heptadecafluorodecylacrylate) were prepared by combining ring-opening polymerization of ε-CL and atom transfer radical polymerization of the acrylate. These copolymers with well-controlled molecular weight and composition were characterized by 1H NMR spectroscopy and used as stabilizers for the dispersion ring-opening polymerization of ε-CL in supercritical carbon dioxide. The effect of composition and architecture of the polymeric stabilizers on the stabilization of PCL microspheres was investigated. Finally, purification of PCL was successfully implemented by reactive supercritical fluid extraction of the tin catalyst.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Grignard, Bruno ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Stassin, Fabrice;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Calberg, Cédric ;  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)
Jérôme, Christine  ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Synthesis of biodegradable poly-epsilon-caprolactone microspheres by dispersion ring-opening polymerization in supercritical carbon dioxide
Publication date :
10 November 2008
Journal title :
Biomacromolecules
ISSN :
1525-7797
eISSN :
1526-4602
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
9
Issue :
11
Pages :
3141-3149
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
The European Community for a fellowship of the “Polymerization and Polymer Modification in Supercritical Fluids: A Novel Way for Cleaner Manufacturing of Plastics (SUPERPOL)” project
The Région Wallonne for the financial support of the “Technologie et Matériaux Polymèes Innovants Préservants 1′Environnement (TECMAVER)” project
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