Thermoreversibly crosslinked poly(ε-caprolactone) as recyclable shape-memory polymer network

Defize, Thomas; Riva, Raphaël; Raquez, Jean-Marie; Dubois, Philippe; Jérôme, Christine; Alexandre, Michaël

doi:10.1002/marc.201100250

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Article (Scientific journals)

Thermoreversibly crosslinked poly(ε-caprolactone) as recyclable shape-memory polymer network

Defize, Thomas; Riva, Raphaël; Raquez, Jean-Marie et al.

2011 • In Macromolecular Rapid Communications, 32 (16), p. 1264-1269

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/93713

DOI
10.1002/marc.201100250

PubMed
21692124

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Keywords :

network; Diels-Alder reaction; shape-memory; stimuli-responsive network

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 Center/Unit :

Center for Education and Research on Macromolecules (CERM)

Disciplines :

Chemistry
Materials science & engineering

Author, co-author :

Defize, Thomas ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Riva, Raphaël ; Université de Liège - ULiège > 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 ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Alexandre, Michaël ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Language :

English

Title :

Thermoreversibly crosslinked poly(ε-caprolactone) as recyclable shape-memory polymer network

Publication date :

17 August 2011

Journal title :

Macromolecular Rapid Communications

ISSN :

1022-1336

eISSN :

1521-3927

Publisher :

Wiley, Weinheim, Germany

Volume :

Issue :

Pages :

1264-1269

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://onlinelibrary.wiley.com/doi/10.1002/marc.201100250/pdf

Funders :

F.R.S.-FNRS - Fonds de la Recherche Scientifique
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
The European Community (FEDER, FSE) in the frame of ‘‘Pôle d’Excellence Materia Nova’’

Available on ORBi :

since 22 June 2011

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130

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115

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113

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