Nanocomposites have been a long-term research interest, due to their robust and flexible features with advantageous biomedical, electrical, optical, or mechanical properties. These properties mean that they are the key to emerging technologies, such as artificial skin, 3D-printing, and flexible electronic devices. Nanoscale reinforcement creates hierarchical multiphase systems in the polymeric matrix, providing extensive designability and high-performance when compared with the conventional composites. Thus, developing modified nanoreinforcements (such as graphene, nanoclay, and nanosemiconductors), finding new processing technologies for polymeric nanocomposites, and exploring their performance and applications are emerging in many industries, including coatings, biomaterials, adhesives, and energy storage.

These nanoreinforced technologies are widely applied in the polymer industry; however, challenges such as the compatibility of nanoreinforcements with huge specific surface areas, high costs, and the potential biotoxicity of nanoreinforcements still remain.

This special issue aims to explore recent developments in nanoreinforcements and the resulting functional polymeric nanocomposites and to identify technical trends for polymeric nanocomposites. Original research articles and reviews are both welcome.

Potential topics include but are not limited to the following:

• Preparation and Characterization of nanoreinforcements
• Fabrication of polymeric nanocomposites
• Nanocomposites manufacturing, molding, and processing
• Applications of functional polymeric nanocomposites
• Environmental effects and potential biotoxicity of nanoreinforcements