Thermal stability study of some azo-derivatives and their complexes, Part 2. New azo-derivative pigments and their Cu(II) complexes.

This paper deals with the investigation concerning the thermal stability of two new azo-derivatives and their Cu(II) complexes of type [Cu(L1)2] and, respectively, ((C4H9)4N)2[Cu(L2)2]. The thermal decomposition steps have been put in evidence. For the kinetically workable ones, the values of the activation energy vs. conversion degree were determined. [ABSTRACT FROM AUTHOR]