【摘要】 从探讨聚醚酯热降解和热氧化降解的机理和抗氧化剂的作用原理着手，讨论了各类抗氧化剂对共聚醚酯热氧化稳定性的影响。通过聚合物的特性粘度［η］ 、端羧基含量［ＣＯＯＨ］ 、热重分析（ＴＧＡ）、差热分析（ＤＳＣ） 、红外光谱分析（ＩＲ）等测试分析，确定了各类抗氧化剂抑制共聚醚酯热氧化降解的规律，并证实了它们之间的协同效应。更多还原

【Abstract】 In this paper we probed the action mechaism of thermal degradation and thermal oxidative degradation of polytheresters and principle for antioxdant reaction.Also discusses some antioxidant to affect thermal oxidative stability of polytheresters.Analysed intrinsic viscosity,number of carboxyl,thermogvavimetry,differential scanning calorimetry and infrared spectrum.It is defined that is law of restraint for antioxdants polyetheresters thermal degradation.Cooridination effect is confirmed between this antioxidants.更多还原