实现多元聚合物共混物的相容，不仅可以拓展制备新型高性能聚合物材料的途径，还可将其应用于塑料废弃物的回收再利用，以解决日趋严重的白色污染等环境问题。难点在于如何制备一种“通用多相增容剂”能同时增容三种或三种以上不同的聚合物。在对多单体熔融接枝的长期研究中，我们发展了具备这种潜力的增容剂。通过对塑料的分类的思考，发现只要能够制备针对聚烯烃、苯乙烯基聚合物以及工程塑料的广谱性相容剂，就能够不用进行分离一步法完成对80%的废塑料的回收利用。前期研究已经表明通过多单体接枝方法制备的多相增容剂可以给出一个良好的解决方案。本研究欲进一步深入探讨多相增溶剂的有效制备、对多元共混体系的增容和相结构演化规律及其性能调控，尤其关注多相增容剂和多元体系下多层级相界面对力学性能的影响，阐明多层级界面的形成对材料变形和破坏时外场能量的有效耗散机制，为制备高强韧多元共混体系奠定理论基础，在一些方面取得领先世界的研究成果

To achieve the compatibility of multi-component polymer blends can not only expand the preparation of new high-performance polymer materials, but also can be applied to the recycling of plastic waste, in order to solve the growing white pollution and other environmental problems. The difficulty lies in how to prepare a "universal multiphase compatibilizer" that can accommodate three or more different polymers at the same time. In the long term study of multi-monomer melt grafting, we developed a compatibilizer with this potential. Through thinking about the classification of plastics, it is found that as long as the broad-spectrum compatibilizer for polyolefin, styrene polymer and engineering plastics can be prepared, the one-step recycling of 80% of waste plastics can be attained without separation process. Previous studies have shown that multiphase compatibilizers prepared by multi-monomer grafting can provide a good solution. This study further explores effective preparation of multiphase compatibilizer for understanding the phase structure evolution of the multi-component blend system and regulating the performance, especially focuses on the effects of hierachical interface formed in the multi-component blend on the mechanical properties. How the formation of the hierachical interface can effectively dissipate external field energy under the deformation and failure will be clarified, thus building a theoretical base for preparation of high Strength and Ductility multi-component blend system. We hope this research will achieve world-leading research results