Direct Route to Well-Defined Poly(ionic liquid)s by Controlled Radical Polymerization in Water
TATON, Daniel
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
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Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
Language
en
Article de revue
This item was published in
ACS Macro Letters. 2014, vol. 3, n° 12, p. 1276-1280
Washington, D.C : American Chemical Society
English Abstract
The precision synthesis of poly(ionic liquid)s (PILs) in water is achieved for the first time by the cobalt-mediated radical polymerization (CMRP) of N-vinyl-3-alkylimidazolium-type monomers following two distinct protocols. ...Read more >
The precision synthesis of poly(ionic liquid)s (PILs) in water is achieved for the first time by the cobalt-mediated radical polymerization (CMRP) of N-vinyl-3-alkylimidazolium-type monomers following two distinct protocols. The first involves the CMRP of various 1-vinyl-3-alkylimidazolium bromides conducted in water in the presence of an alkyl cobalt(III) complex acting as a monocomponent initiator and mediating agent. Excellent control over molar mass and dispersity is achieved at 30 degrees C. Polymerizations are complete in a few hours, and PIL chain-end fidelity is demonstrated up to high monomer conversions. The second route uses the commercially available bis(acetylacetonato)cobalt(II) (Co(acac)2) in conjunction with a simple hydroperoxide initiator (tertbutyl hydroperoxide) at 30, 40, and 50 degrees C in water, facilitating the scaling-up of the technology. Both routes prove robust and straightforward, opening new perspectives onto the tailored synthesis of PILs under mild experimental conditions in water.Read less <
English Keywords
METHACRYLATE
AMBIENT-TEMPERATURE
DIBLOCK COPOLYMERS
CLICK CHEMISTRY POLYADDITION
HYDROPHILIC BLOCK-COPOLYMERS
AQUEOUS RAFT POLYMERIZATION
N-BUTYL ACRYLATE
IONIC LIQUID
VINYL-ACETATE
SOLUBLE (CO)POLYMERS
Origin
Hal imported