以癸二酸、丁二酸为二元酸,丁二醇为二元醇,通过熔融共聚的方式合成了聚(癸二酸丁二醇酯丁二酸丁二醇酯)无规共聚物(SE10)和聚丁二酸丁二醇(PBS),并通过酶解实验研究了相对分子质量、结构、表面形态的变化.通过红外光谱、差示量热扫描仪、偏光显微镜、凝胶色谱和扫描电镜对二者降解前后性能进行了研究,相比PBS,SE10晶体直径较小,晶体结构形态变模糊,结晶度由68.0％下降为45.7％,熔点由115.23℃下降为92.40℃.90d后SE薄膜的质量损失率达到63％,-Mw由34700降为11500,而PBS质量损失率为27％,-Mw由49000降为33000.表明癸二酸的引入降低了PBS的结晶性能,提高了其降解性能.
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