Estimation of activation parameters for the propagation rate constant of styrene

For a temperature range of ?11.8–92.6°C, the propagation rate constant k_p of styrene has been determined with the use of pulsed-laser polymerization (PLP). The temperature dependency of the obtained k_p data was evaluated using the Arrhenius equation. The NLLS error-in-variables method (EVM) is recommended for this fit. The resulting activation energy is 32.6 kJ mol^?1 and the pre-exponential factor is 10^7.66 dm³ mol^?1 s^?1. A joint confidence interval for these parameters is given. © 1996 John Wiley & Sons, Inc.