The effect of simultaneously occurring processes on the course of polymer crystallization

The possibility that simultaneously occurring processes may account for the anomalous fractional values of the Avrami exponent found in recent polymer crystallization experiments is considered, and, on balance, rejected. A more likely explanation is that one of the assumptions used in deriving the Avrami equation is at fault. This leads to the conclusion that the Avrami parameters cannot be used diagnostically to provide information on crystallization mechanism, as has been considered to be the case in the past.