Nowadays, growing attention is being paid to the environment and sustainability, what fully justified research works focused on modification of biodegradable polymers and their composites. In this field of research reactive extrusion seems to be the most promising approach, which fits well to sustainable development strategy. In the present work, the in-situ modification of biodegradable aliphatic polyesters and the compatibilization of their blends by the action of free-radical initiators has been reviewed. The main concerns are the mechanisms of the free radicals induced modification of aliphatic polyesters and their blends. The cross-linked, branched or degraded structures of the formed polymers/blends were comprehensively characterized as function of modifier type and processing conditions. Moreover, the reactive processing and various types of irradiation in respect to the inter chain modification of polymers were presented. Main advantages and disadvantages related to reactive extrusion of biodegradable aliphatic polyesters and their blends in presence of free-radical-initiators were also pointed and discussed.

如今，人们越来越关注环境和可持续性，充分合理的研究工作集中在可生物降解聚合物及其复合材料的改性上。在这一研究领域中，反应挤压似乎是最有前途的方法，非常适合可持续发展战略。在目前的工作中，原位对可生物降解的脂族聚酯的改性及其在自由基引发剂作用下的相容性进行了综述。主要关注的是自由基诱导脂肪族聚酯及其共混物改性的机理。形成的聚合物/共混物的交联，支化或降解结构被全面表征为改性剂类型和加工条件的函数。此外，提出了关于聚合物的链间改性的反应性处理和各种类型的辐射。还指出并讨论了与在自由基引发剂存在下可生物降解的脂族聚酯及其共混物的反应挤出相关的主要优缺点。