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Fluorinated Poly(ionic liquid) Diblock Copolymers Obtained by Cobalt-Mediated Radical Polymerization-Induced Self-Assembly
Cordella, Daniela; Ouhib, Farid; Aqil, Abdelhafid et al.
2017In ACS Macro Letters, 6 (2), p. 121-126
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Keywords :
radical polymerization; cobalt-mediated radical polymerization (CMRP); poly(ionic liquid); fluorinated polymer
Abstract :
[en] Poly(ionic liquid)s (PILs) have attracted considerable attention as innovative single-ion solid polyelectrolytes (SPEs) in substitution to the more conventional electrolytes for a variety of electrochemical devices. Herein, we report the precise synthesis, characterization, and use as single-ion SPEs of a novel double PIL-based amphiphilic diblock copolymer (BCP), i.e., where all monomer units are of N-vinyl-imidazolium type, with triethylene glycol pendant groups in the first block and a statistical distribution of N-vinyl-3-ethyl- and N-vinyl-3-perfluorooctyl-imidazolium bromides in the second block. BCP synthesis is achieved directly in water by a one-pot process, by cobalt-mediated radical polymerization-induced self-assembly (CMR-PISA). A subsequent anion exchange reaction substituting bis(trifluoromethylsulfonyl)imide (Tf2N-) for bromide (Br-) counter-anions leads to PIL BCPs with two different lengths of the first block. They demonstrate ionic conductivity σDC = 1-3 × 10-7 S cm-1, as determined by broadband dielectric spectroscopy at 30 °C (under anhydrous conditions), and exhibit wide electrochemical stability (up to 4.8 V versus Li+/Li) and form free-standing films with mechanical properties suited for SPE applications (Young's modulus = 3.8 MPa, elongation at break of 250%) as determined by stress/strain experiments. © 2017 American Chemical Society.
Research center :
Center for Education and Research on Macromolecules (CERM)
CESAM - Complex and Entangled Systems from Atoms to Materials - ULiège
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Cordella, Daniela ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Ouhib, Farid ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Aqil, Abdelhafid ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Defize, Thomas ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Jérôme, Christine  ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Serghei, Anatoli;  Univeristy of Lyon, CNRS, Ingénierie des Matériaux Polymères, France
Drockenmuller, Eric;  Univeristy of Lyon, CNRS, Ingénierie des Matériaux Polymères, France
Aissou, Karim;  University of Bordeaux, Laboratoire de Chimie des Polymères Organiques (LCPO), France
Taton, Daniel;  University of Bordeaux, Laboratoire de Chimie des Polymères Organiques (LCPO), France
Detrembleur, Christophe ;  University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Fluorinated Poly(ionic liquid) Diblock Copolymers Obtained by Cobalt-Mediated Radical Polymerization-Induced Self-Assembly
Publication date :
21 February 2017
Journal title :
ACS Macro Letters
eISSN :
2161-1653
Publisher :
American Chemical Society
Volume :
6
Issue :
2
Pages :
121-126
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
The ITN "Marie Curie" Renaissance
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