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Synergistic Effect of 1-Butyl-3-methylimidazolium Hexafluorophosphate and DMSO in the SARA ATRP at Room Temperature Affording Very Fast Reactions and Polymers with Very Low Dispersity.

ABSTRACT: An unusual synergistic effect between 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF6) and dimethyl sulfoxide (DMSO) mixtures is reported for the supplemental activator and reducing agent atom transfer radical polymerization (SARA ATRP) of methyl acrylate (MA) using a catalytic system composed by sodium dithionate (Na2S2O4) and CuBr2/Me6TREN (Me6TREN: tris[2-(dimethylamino)ethyl]amine) at room temperature. To the best of our knowledge, the use of ionic liquids (IL) has never been reported for the SARA ATRP. The kinetic data obtained for a broad range of target molecular weights revealed very fast polymerization rates, low dispersity values (? < 1.05) and well-defined chain-end functionalities.

SUBMITTER: Mendes JP 

PROVIDER: S-EPMC4105173 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature

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Synergistic Effect of 1-Butyl-3-methylimidazolium Hexafluorophosphate and DMSO in the SARA ATRP at Room Temperature Affording Very Fast Reactions and Polymers with Very Low Dispersity.

Mendes Joana P JP   Branco Fábio F   Abreu Carlos M R CM   Mendonça Patrícia V PV   Popov Anatoliy V AV   Guliashvili Tamaz T   Serra Arménio C AC   Coelho Jorge F J JF  

ACS macro letters 20140527 6

An unusual synergistic effect between 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF<sub>6</sub>) and dimethyl sulfoxide (DMSO) mixtures is reported for the supplemental activator and reducing agent atom transfer radical polymerization (SARA ATRP) of methyl acrylate (MA) using a catalytic system composed by sodium dithionate (Na<sub>2</sub>S<sub>2</sub>O<sub>4</sub>) and CuBr<sub>2</sub>/Me<sub>6</sub>TREN (Me<sub>6</sub>TREN: tris[2-(dimethylamino)ethyl]amine) at room temperature. To  ...[more]

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