以癸二酸1,3-丙二醇酯(PPS)预聚物为软段,丁二酸丁二醇酯(PBS)预聚物为硬段,通过直接缩聚方式,合成了一系列聚(丁二酸丁二醇酯癸二酸1,3-丙二醇酯)嵌段共聚物(PBS-PPS).通过红外光谱(IR)、核磁共振(1H-NMR)、差示扫描量热(DSC)、凝胶色谱(GPC)和扫描电镜(SEM)对产物进行了表征,研究了物料配比对共聚物的结晶性、热性能和 降解性的影响.结果表明,合成产物为典型的聚酯结构,随着PPS链段的增加,共聚物的结晶度下降,PBS为68.00％,而PBS-PPS10∶3仅为35.50％;质量损失率增加,PBS在酶解液中10周内质量损失率为27％,而PBS-PPS10∶3为71％;相对分子质量降低程度增大,PBS下降了35％,而PBS-PPS10∶3为81％;共聚物表面形态的破坏程度和酯键的水解程度也有显著提高.
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