The laser single pulse (SP)-pulsed laser polymerization (PLP)-electron paramagnetic resonance (EPR) technique allows for deducing propagation (k(p)) and termination (k(t)) rate coefficients, including the chain-length dependence of k(v), from a single pulsed-laser experiment. The method, which is particularly well suited for slowly terminating radicals, e.g., sterically hindered and ionic radicals, is illustrated for di(n-butyl) itaconate in bulk at temperatures from 30 to 60 degrees C. The time evolution of the DBI radical concentration is measured with a high time resolution at constant magnetic field. Propagation is associated with a relatively low pre-exponential A(k(p)), which is responsible for the small k(p) value of 6.8 L mol(-1) s(-1) at 30 degrees C. The chain-length dependence (CLD) of k(v) deduced from the same SP-PLP-EPR signal as is k(p), turns out to be adequately represented by the composite model. Whereas typical numbers are found for the power-law exponents for short and long radicals and for the crossover chain length, the parameter k(t)(1,1), which represents mutual termination of two radicals of chain length unity, is by 2 orders of magnitude below k(t)(1,1) of monomers without significant steric hindrance.