Termination kinetics of free-radical polymerization in ionic liquids |
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Authors: | Johannes Barth Gudrun Schmidt-Naake |
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Affiliation: | a Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, D-37077 Göttingen, Germany b Institute of Technical Chemistry, Clausthal University of Technology, Erzstraße 18, D-38678 Clausthal-Zellerfeld, Germany |
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Abstract: | Termination rate coefficients, kt, for free-radical polymerization of 15 vol.-% methyl methacrylate (MMA) dissolved in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)-imide and in 1-butyl-3-methylimidazolium tetrafluoroborate were measured at 10 °C via the single pulse − pulsed laser polymerization − electron paramagnetic resonance (SP-PLP-EPR) technique. Whereas absolute kt in ionic liquid solution is by about one order of magnitude below the associated bulk MMA value, the chain-length dependence of kt is very similar in both liquid environments. |
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Keywords: | Free-radical polymerization kinetics Ionic liquids Electron paramagnetic resonance |
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