用热重分析法,研究了Ni-OEP、Ni-TPP、VO-OEP以及VO-TPP(OEP:2,3,7,8,12,13,17,18-21H,23H-八乙基卟啉;TPP:5,10,15,20-21H,23H-四苯基卟啉)4种金属卟啉的热稳定性进行了研究.结果表明,金属卟啉的热稳定性与其卟啉配体及中心离子的性质有关,配体的给电子能力和中心离子的吸电子能力越强,金属卟啉的热稳定性就越高,四种金属卟啉的热稳定性顺序为:VO-TPP≈Ni-TPP>VO-OEP>Ni-OEP.对金属卟啉热分解反应动力学参数进行了简单计算.
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