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The thermal degradation of poly(a-methylstyrene) in solution was investigated at various temperatures (150-225 C) and polymer concentrations (2.00-20.0 g/L) at 6.8 MPa (1 000 psig). The molecular weight distributions (MWDs) of the reacted polymer at these conditions were examined at four different residence times. Experimental data indicated that the polymer degraded to its monomer, a-methylstyrene. No other degradation products were observed. Continuous-mixture kinetics was used to examine thedoi:10.2172/211480 fatcat:ps2frq6h4rbkzksa4preolkm3i