ORBi: Defize Thomas - Thermoreversibly crosslinked poly(ε-caprolactone) as recyclable shape-memory polymer network

Reference : Thermoreversibly crosslinked poly(ε-caprolactone) as recyclable shape-memory polymer net...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/93713

Title :	Thermoreversibly crosslinked poly(ε-caprolactone) as recyclable shape-memory polymer network
Language :	English
Author, co-author :	Defize, Thomas [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Riva, Raphaël [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Raquez, Jean-Marie [University of Mons (UMons) > > Center of Innovation and Research in Materials and Polymers (CIRMAP), Laboratory of Polymeric and Composite Materials (LPMC) > >]
	Dubois, Philippe [University of Mons (UMons) > > Center of Innovation and Research in Materials and Polymers (CIRMAP), Laboratory of Polymeric and Composite Materials (LPMC) > >]
	Jérôme, Christine [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
	Alexandre, Michaël [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Publication date :	17-Aug-2011
Journal title :	Macromolecular Rapid Communications
Publisher :	Wiley
Volume :	32
Issue/season :	16
Pages :	1264-1269
Audience :	International
ISSN :	1022-1336
e-ISSN :	1521-3927
City :	Weinheim
Country :	Germany
Keywords :	[en] network ; Diels-Alder reaction ; shape-memory ; stimuli-responsive network ; shape-memory
Abstract :	[en] A new concept to build shape memory polymers (SMP) combining outstanding fixity and recovery ratios (both above 99% after only one training cycle) typical of chemically crosslinked SMPs with reprocessability restricted to physically crosslinked SMPs is demonstrated by covalently bonding, through thermoreversible Diels–Alder (DA) adducts, star-shaped poly(epsilon-caprolactones) (PCL) end-functionalized by furan and maleimide moieties. A PCL network is easily prepared by melt-blending complementary end-functional star polymers in retro DA regime, then by curing at lower temperature to favour the DA cycloaddition. Such covalent network can be reprocessed when heated again at the retro DA temperature. The resulting SMP shows still excellent shape memory properties attesting for its good recyclability.
Research units :	Center for Education and Research on Macromolecules (CERM)
Funders :	Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; The European Community (FEDER, FSE) in the frame of ‘‘Pôle d’Excellence Materia Nova’’
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/93713
DOI :	10.1002/marc.201100250
Other URL :	http://onlinelibrary.wiley.com/doi/10.1002/marc.201100250/pdf

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