[en] The polymerization of cyclic phosphates to poly(phosphoester)s, PPEs, is optimized for chip- based microreactors under continuous flow conditions. The anionic ring-opening polymerization of 2-isobutyoxy-2-oxo-1,3,2-dioxaphospholane (iBP) via the use of two organocatalytic systems allowed to polymerize to nearly quantitative monomer conversion within 10 or 3 minutes, respectively at a reaction temperature of 40 °C. Further, the optimized polymerization protocol was applied to 2-butenoxy-2-oxo-1,3,2-dioxaphospholane (BP) which yields a polymer that carries an alkene functionality per monomer repeating unit. This material can be postmodified in an UV-induced radical thiol-ene reaction, which was also shown to proceed with very high efficiency under UV-flow conditions. Eventually, both reactions were coupled in a two-stage reactor setup, showing that the thermally-activated polymerization can be coupled with high efficiency to the UV-activated post-polymerization modification reaction. The introduced reactor setup can in the future be used to produce and screen a broad variety of functional PPE materials with various functionalities and physical properties.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering Chemistry
Author, co-author :
Baeten, Evelien; University of Hasselt, Institute for Materials Research Polymer Reaction Design Group
Vanslambrouck, Stéphanie ; University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Christine ; University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Lecomte, Philippe ; University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Junkers, Thomas; University of Hasselt, Institute for Materials Research Polymer Reaction Design Group
Language :
English
Title :
Anionic flow polymerizations toward functional polyphosphoesters in microreactors: Polymerization and UV-modification
Publication date :
July 2016
Journal title :
European Polymer Journal
ISSN :
0014-3057
eISSN :
1873-1945
Publisher :
Elsevier Science
Volume :
80
Pages :
208-218
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE] The Interreg Project "BioMIMedics"
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