Barth, J.; Buback, M.; Schmidt-Naake, G.; Woecht, I.
Termination kinetics of free-radical polymerization in ionic liquids
Polymer 2009, 50, 5708-5712.
 

Termination rate coefficients, k_t, 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 k_t in ionic liquid solution is by about one order of magnitude below the associated bulk MMA value, the chain-length dependence of k_t is very similar in both liquid environments.