The kinetics of charge-transfer (CT) polymerization of methyl methacrylate (MMA) in the presence of imidazole (Imy) and CCI4 was studied in dimethyl sulfoxide (DMSO) at 60 degrees C. The rate of polymerization (R(p)) is sensitive to the [CCl4] up to a concentration of 0.60 mol L(-1), but at a higher concentration, it is practically independent of the [CCl4]. When [CCl4] > [Imy], R(p) is proportional to [MMA](1.45+/-0.15) and [Imy](0.53+/-0.04) and the average rate constant for the polymerization of MMA is 3.25 +/- 0.41 X 10(-6) L mol(-1) s(-1). This article also reports the polymerization of MMA initiated by Imy and CCl4 and accelerated by hexakis(dimethyl sulfoxide) iron(III) perchlorate, [Fe(DMSO)(6)] (ClO4)(3) (A), at 60 degrees C. The presence of Fe(Imy)(3)(3+) in the polymerization system produced well-defined induction periods. The rate constant at 60 degrees 0 for the interaction of the poly(MMA) radical toward Fe(Imy)(3)(3+) is 7.19 X 10(4) L mol(-1) s(-1). A probable reaction mechanism for the polymerization system has been postulated to explain the observed results.