草酰胺配合物的热分解动力学研究Ⅱ.N,N’-双(3-氨丙基)草酰胺合铜(Ⅱ)

THERMAL DECOMPOSITION KINETICS OF OXAMIDE COMPLEX Ⅱ. N,N'-BIS(3-AMINOPROPYL)OXAMIDOCOPPER(Ⅱ)

应用TG -DTG -DTA热分析技术研究了N ,N’ -双 (3-氨丙基 )草酰胺合铜 (Ⅱ )配合物在空气气氛中的热行为 ;并对其非等温TG数据分别用微分法 (Achar法 )和积分法 (Coats_Redfen法 )进行了解析 .通过对比热分解动力学参数 ,提出了N ,N’ -双 (3-氨丙基 )草酰胺合铜 (Ⅱ )配合物热分解反应机理 ;根据TG曲线计算出了E ,lnA和ΔS 。

A kinetic study of the thermal decomposition of the copper(Ⅱ) complex with N,N'-bis(3-aminopropyl)oxamide was carried out by using TG and DTA technique under dynamic air atmosphere. The non_isothermal kinetics data were analyzed by means of the Achar method and the Coats_Redfen method. The most probable kinetic model function was suggested by comparison of the kinetic parameters. The activation energies, the entropies, and the pre_exponential factor of the thermal decomposition reactions are calculated with the thermogravimetric curves. The mathematical expressions of E and lnA were derived from the kinetic compensation effects.