IDENTIFICATION OF PARAMETERS IN POLYMER CRYSTALLIZATION

The complex phenomenon of partial crystallization of polymers is exami ned. A mathematical model is exploited for the isothermal crystallizat ion process in which the nucleation rate and the growth of the spherul ites are constant. This model consists of an integro-differential equa tion, depending on some key parameters, whose identification is crucia l for a correct description of the phenomenon. The main purpose of thi s work is to solve this problem numerically, using the experimental da ta provided by the HIMONT-ITALIA Laboratories. An error analysis of th e adopted numerical method is carried out, and some numerical results are given, to show the validity and flexibility of the technique.