[Objective] The aim was to study the preparation methods and properties of polyacid derivatives of rosin. [ Method] Fumaropima-ric acid ( FPA) and maleopimaric acid ( MPA) were prepared through D-A addition reaction with rosin as raw material. They were purified by recryctallization, respectively, then their structure and performances were determined using a variety of analytical methods. [ Result] The results showed that the purities of FPA and MPA were both over 95% , meanwhile, the heat resistance were improved compared with rosin. [Conclusion] The certain scientific basis for the application of rosin derivatives was provided.%[目的]研究松香三元酸衍生物的制备纯化方法及性能.[方法]以松香为原料,通过D-A加成制备富马海松酸和马来海松酸酐,并分别使用重结晶法对其进行纯化,同时采用多种分析手段对其结构及性能进行测定.[结果]制备并纯化得到的富马海松酸和马来海松酸酐的纯度均达95％以上,且与松香相比耐热性有所提高.[结论]为扩大松香衍生物的应用提供科学依据.
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