Abstract :
The thermal degradation of polyamide 6, polyamide 66 and of polyamide 612 was studied using three different thermal analyzers with combined techniques for the evolved gas analysis (TA-MS and TA-FTIR). The sample masses were about 13 mg, 20 mg and 1 g; the heating rates were 2.6 and 10 K min−1. Nitrogen, argon and synthetic air were used as carrier gases. The evolved gaseous products were captured on the resin XAD-4, desorbed and analyzed off-line by GC/MS. The advantages and limitations of each technique are emphasized as well as the form in which its application is maximized when using them simultaneously.
