Polymer blends. For the blend systems that are difficult to alloy, we utilize new methods to prepare high-performance polymer blends, including transfer of functional groups, interface induction, in-situ compatibilization, nano-compatibilization, etc. Combining different technologies and conducting research on the relationship between structure and performance, we aim to build new synthesizing methods of functional materials, including super-tough, high-stiffness, heat-resistant, antistatic, flame retardant materials, etc.