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A viscometer-reactor assembly is used to generate data on the viscosity, η(t), of an example polymerizing system exhibiting the Trommsdorff effect, namely, the bulk free radical polymerization of methyl methacrylate (MMA), at different temperature conditions [near-isothermal and non-isothermal (near-step increase and near-step decrease in temperature)] and at two different initiator, 2,2′-azoisobutyronitrile...
Experimental data on the monomer conversion, x m , and the weight average molecular weight, M w , have been generated under several isothermal and non-isothermal conditions for the polymerization of methyl methacrylate in a rheometer-reactor assembly. The non-isothermal results, in particular, can be used to provide more stringent tests of kinetic models than isothermal data alone...
A detailed kinetic model is developed for the polymerization of poly(phenylene oxide) (PPO). The Box complex technique is used to obtain the best-fit values of the parameters of the model (rate constants), using experimental data on the variation of the number-average chain length (μ n ) with time for one set of conditions. A sensitivity study helps to simplify this kinetic scheme. The...
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