The aim of this work is to analyse the effect of the preparation method on the miscibility of poly(butylene adipate-co-terephthalate) (PBAT) and poly(hydroxy ether of bisphenol A) (PH) blends and to provide a better understanding on the effect of a non-degradable component (PH) in the degradation of biodegradable PBAT. Blends have been prepared by different methods and the miscibility has been studied in a deeper way by means of differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and infrared spectroscopy (FTIR). Depending on the preparation method miscible or partially miscible blends are obtained. Furthermore, for miscible blends the hydrolytic degradation has been carried out for 405 days. It has been observed that adipate sequences on poly(butylene adipate-co-terephthalate) copolymer are more prone to degradation which leads to changes on glass transition temperature, crystallinity and chemical structure. The degradation rate is decelerated with the addition of PH, however the rate is similar or higher than other biodegradable polymers. Therefore the degradation rate can be controlled varying the composition of the blend and tailored materials with adequate properties can be obtained.

这项工作的目的是分析在聚（亚丁基己二酸酯的混溶性的制备方法的效果共-terephthalate）（PBAT）和聚（双酚A的羟基醚）（PH）的共混物，并提供更好地理解上不可降解成分（PH）在可生物降解PBAT降解中的作用。已通过不同方法制备了共混物，并通过差示扫描量热法（DSC），扫描电子显微镜（SEM）和红外光谱（FTIR）进行了更深入的研究。根据制备方法，获得可混溶或部分可混溶的共混物。此外，对于可混溶的混合物，水解降解已经进行了405天。已经观察到，在聚己二酸序列（亚丁基己二酸酯共-对苯二甲酸酯）共聚物更易于降解，导致玻璃化转变温度，结晶度和化学结构的变化。加入PH会降低降解速率，但是降解速率与其他可生物降解的聚合物相似或更高。因此，可以通过改变共混物的组成来控制降解速率，并且可以获得具有足够性能的定制材料。