The reaction .mechanisms of both FA with PET/DEG and MA with PET/DEG are analysed by means of IR, the influences of unsaturated acids on the thermal properties of UP resin are also discussed.

• 本文通过红外光谱分析了用顺酐和反丁烯二酸与聚酯等反应合成不饱和聚酯树脂的反应机理,讨论了不饱和酸顺反结构形式对树脂热性能的影响。