A well-defined polyelectrolyte and its copolymers by reversible addition fragmentation chain transfer (RAFT) polymerization: synthesis and applications

Muhammad Mumtaz (1, 2) , Karim Aissou (1, 2) , Dimitrios Katsigiannopoulos (1, 2) , Cyril Brochon (1, 2) , Eric Cloutet (1, 2) , Georges Hadziioannou (1, 2)

1 LCPO - Laboratoire de Chimie des Polymères Organiques
2 Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies

Reversible Addition-Fragmentation Chain Transfer (RAFT) polymerization of 4-styrenesulfonyl(trifluoromethyl-sulfonyl)imide potassium salt (SKTFSI) in N,N-dimethylformamide (DMF) solution was carried out using 2-(dodecylsulfanylthiocarbonylsulfanyl)-2-methylpropionic acid (DDMAT) as a reversible chain transfer agent in the presence of 2,2'-azobisisobutyronitrile (AIBN) at 65 degrees C in an inert atmosphere. We showed both homopolymers and well-defined polyelectrolyte diblock copolymer systems could be prepared through the direct polymerization of the charged SKTFSI monomer. To produce Li-ion polyelectrolytes, a cation exchange methodology (e.g. K+ -> Li+) was used. Self-assembly of single-ion diblock copolymer thin films consisting of a Li-ion conductive PSLiTFSI block associated with a glassy polystyrene block is also demonstrated.

Mots clés: LITHIUM BATTERIES; THERMAL-DEGRADATION; TRIBLOCK COPOLYMERS; ELECTROLYTES; CONDUCTIVITY; WATER

Domaines: Polymères

Muhammad Mumtaz, Karim Aissou, Dimitrios Katsigiannopoulos, Cyril Brochon, Eric Cloutet, et al.. A well-defined polyelectrolyte and its copolymers by reversible addition fragmentation chain transfer (RAFT) polymerization: synthesis and applications . RSC Advances, 2015, 5 (119), pp.98559-98565. ⟨10.1039/c5ra19730a⟩. ⟨hal-01369646⟩