Micro-/nanolayer coextrusion is one of efficient and convenient ways to fabricate alternating multilayer functional materials by combining an assembly of layer multiplying elements (LMEs) with a conventional coextrusion block. Due to a special design of channels and force fields

LME plays a significant role in the layer multiplication and morphological control of the polymeric melt. Studies found that the confined space and rich interfaces formed in the alternating multilayer structure endowed the final products with unique mechanical

barrier

optical and other properties. This paper presents a review of the recent research progress of the structure and properties of micro-/nanolayer polymer composites in our group.