摘要
The complex [Sm(p-MBA)3phen]2 (p-MBA, p-methylbenzoate; phen, 1,10-phenanthroline) was prepared and characterized by elemental analysis, IR and UV spectra. The thermal decomposition process of [Sm(pMBA)3phen]2 was studied under a static air atmosphere by TG-DTG and IR techniques. Thermal decomposition kinetics was investigated employing a newly proposed method, together with the integral isoconversional non-finear method. Meanwhile, the thermodynamic parameters (AH#, △G# and AS#) were also calculated. The lifetime equation at mass-loss of 10% was deduced as In r=-24.7825+ 18070.43/T by isothermal thermogravimetric analysis.
The complex [Sm(p-MBA)3phen]2 (p-MBA, p-methylbenzoate; phen, 1,10-phenanthroline) was prepared and characterized by elemental analysis, IR and UV spectra. The thermal decomposition process of [Sm(pMBA)3phen]2 was studied under a static air atmosphere by TG-DTG and IR techniques. Thermal decomposition kinetics was investigated employing a newly proposed method, together with the integral isoconversional non-finear method. Meanwhile, the thermodynamic parameters (AH#, △G# and AS#) were also calculated. The lifetime equation at mass-loss of 10% was deduced as In r=-24.7825+ 18070.43/T by isothermal thermogravimetric analysis.
基金
Project supported by the Natural Science Foundation of Hebei Province (Nos. 203148 and 202140), Hebei Education Department (No. 2004325) and Hebei Normal University (No. 2005Y12).