【摘要】 本文提出了松香改性不饱和聚酯的反应机理．制备某些模型化合物，应用化学分析、ＩＲ分析方法进行鉴定．研究结果确认，松香酸的羧基与聚酯链的端羟基发生酯化反应．使其失去反应活性，起到封闭端基的作用．反应过程中无Ｄｉｅｌｓ—Ａｌｄｅｒ加成反应发生．为合成性能优良的松香改性不饱和聚酯提供了合理的合成路线和最佳工艺条件。更多还原

【Abstract】 The reaction mechanism of the rosin-modified unsaturated polyesters has been studies. and some-related model compounds prepared. The identifica- tions have been made by means of chemical analysis and IR method. The result affirms that the elimination of the polyester activity is mainly due to the reac- tion of the carbonyl groups of the rosin acid and the terminal hydroxyl groups of the polyesters. The reaction of the Dicls-Alder does not produce during the reaction process. Hence, the optimal conditions for the synthesis of rosin-modified unsaturated polyesters are established.更多还原