| Abstract
| - Free-radical propagation rate coefficients(kp) for three cycloalkyl methacrylates andtwofunctional methacrylates were measured at temperatures between 30 and110 °C. The data were obtainedby analyzing molecular weight distributions of polymer produced bypulsed-laser polymerization − thePLP/MWD technique. Arrhenius parameters were compared with recentresults reported for linear andbranched alkyl methacrylates, including methyl methacrylate (MMA) andn-dodecyl methacrylate (DMA).The highest kp value, for 2-hydroxypropylmethacrylate, is more than twice the MMA value, and is50%higher than the DMA value at 50 °C. The monomer with the lowestkp value, isobornyl methacrylate,has a coefficient of similar magnitude to DMA. Values for theother three monomers − glycidyl, cyclohexyl,and benzyl methacrylates − are intermediate between these twolevels.
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