Facile engineering of advanced multiscale composites based on chemorheology

Multiscale composites containing fillers from nano- to macro-scales offer unique opportunities to achieve multifunctional properties. However, optimizing these systems remains challenging because composite performance is strongly influenced by filler interactions, processing behavior, and reaction-induced network formation. In this presentation, we introduce a chemorheology-guided strategy for engineering advanced functional multiscale composites. By combining rheological analysis with chemical reaction monitoring, chemorheology provides a practical framework for understanding filler dispersion, interfacial interactions, and structural evolution during fabrication. Using this approach, we developed a variety of functional composites, including thermally conductive adhesives, sound-absorbing polymer foams, smart shape-memory composites, and reconfigurable molecular sensing platforms. Despite their different applications, these materials share a common design principle: the integration of multiscale fillers with optimized reaction and flow behavior to generate hierarchical structures and enhanced functionality. The results demonstrate that chemorheology can serve as a powerful design tool beyond conventional characterization, enabling rational control of processing–structure–property relationships. This framework offers a scalable route for developing next-generation multifunctional composites for thermal management, acoustic control, sensing, and smart material systems.