One-Pot Synthesis of Double Poly(Ionic Liquid) Block Copolymers by Cobalt-Mediated Radical Polymerization-Induced Self-Assembly (CMRPISA) in Water

Daniela Cordella (1) , Antoine Debuigne (1) , Christine Jérôme (1) , Zdravko Kochovski (2) , Daniel Taton (3, 4) , Detrembleur Christophe (1)

1 Univ Liege, Dept Chem, CERM
2 HZB - Helmholtz-Zentrum Berlin für Materialien und Energie GmbH = Helmholtz Centre Berlin for Materials and Energy = Centre Helmholtz de Berlin pour les matériaux et l'énergie
3 LCPO - Laboratoire de Chimie des Polymères Organiques
4 Team 1 LCPO : Polymerization Catalyses & Engineering

Amphiphilic double poly(ionic liquid) (PIL) block copolymers are directly prepared by cobaltmediated radical polymerization induced self-assembly (CMR-PISA) in water of N-vinyl imidazolium monomers carrying distinct alkyl chains. The cobalt-mediated radical polymerization of N-vinyl-3-ethyl imidazolium bromide (VEtImBr) is first carried out until high conversion in water at 30 degrees C, using an alkyl bis(acetylacetonate) cobalt(III) adduct as initiator and controlling agent. The as-obtained hydrophilic poly(N-vinyl-3ethyl imidazolium bromide) (PVEtImBr) is then used as a macroinitiator for the CMR-PISA of N-vinyl-3-octyl imidazolium bromide (VOcImBr). Self-assembly of the amphiphilic PVEtImBr-b-PVOcImBr block copolymer, i.e., of PIL-b-PIL-type, rapidly takes place in water, forming polymer nanoparticles consisting of a hydrophilic PVEtImBr corona and a hydrophobic PVOcImBr core. Preliminary investigation into the effect of the size of the hydrophobic block on the dimension of the nanoparticles is also described.

Mots clés: Z (Kochovski; Zdravko)[ 2 ]; Taton; D (Taton; Daniel)[ 3 ]; Detrembleur; C (Detrembleur; Christophe)[ 1 ] MACROMOLECULAR RAPID COMMUNICATIONS Volume: 37 Issue: 14 Pages: 1181-1187 Special Issue: SI DOI: 10.1002/marc.201600039 Published: JUL 2016 View Journal Information Abstract Amphiphilic double poly(ionic liquid) (PIL) block copolymers are directly prepared by cobaltmediated radical polymerization induced self-assembly (CMR-PISA) in water of N-vinyl imidazolium monomers carrying distinct alkyl chains. The cobalt-mediated radical polymerization of N-vinyl-3-ethyl imidazolium bromide (VEtImBr) is first carried out until high conversion in water at 30 degrees C; using an alkyl bis(acetylacetonate) cobalt(III) adduct as initiator and controlling agent. The as-obtained hydrophilic poly(N-vinyl-3ethyl imidazolium bromide) (PVEtImBr) is then used as a macroinitiator for the CMR-PISA of N-vinyl-3-octyl imidazolium bromide (VOcImBr). Self-assembly of the amphiphilic PVEtImBr-b-PVOcImBr block copolymer; i.e.; of PIL-b-PIL-type; rapidly takes place in water; forming polymer nanoparticles consisting of a hydrophilic PVEtImBr corona and a hydrophobic PVOcImBr core. Preliminary investigation into the effect of the size of the hydrophobic block on the dimension of the nanoparticles is also described. Keywords Author Keywords:block copolymers; vinyl imidazolium; POLYELECTROLYTE-STABILIZED NANOPARTICLES; RAFT POLYMERIZATION; IONIC LIQUIDS; NANO-OBJECTS; MONOMERS; VESICLES; ROUTE; SEPARATION; AQUEOUS DISPERSION POLYMERIZATION; Chemistry; block copolymers; cobalt-mediated radical polymerization; induced self assembly; poly(ionic liquid)s; One-Pot Synthesis of Double Poly(Ionic Liquid) Block Copolymers by Cobalt-Mediated Radical Polymerization-Induced Self-Assembly (CMRPISA) in Water By:Cordella; D (Cordella; Daniela)[ 1 ]; Debuigne; A (Debuigne; Antoine)[ 1 ]; Jerome; C (Jerome; Christine)[ 1 ]; Kochovski

Domaines: Polymères

Daniela Cordella, Antoine Debuigne, Christine Jérôme, Zdravko Kochovski, Daniel Taton, et al.. One-Pot Synthesis of Double Poly(Ionic Liquid) Block Copolymers by Cobalt-Mediated Radical Polymerization-Induced Self-Assembly (CMRPISA) in Water. Macromolecular Rapid Communications, 2016, 37 (14), pp.1181-1187. ⟨10.1002/marc.201600039⟩. ⟨hal-01383177⟩