This study demonstrates a novel 3D printing method using polymerization-induced phase separation (PIPS) to control the spatial distribution of materials within functional objects. By controlling gelation kinetics, crosslinking density, and material diffusivity through resin formulation, a continuum of morphologies (coatings, gradients, composites) is achieved. The approach enables the fabrication of 3D piezoresistive sensors, 5G antennas, and antimicrobial objects, showcasing its potential for integrating dissimilar materials in 3D printing of smart parts.

Bhavana Deore, Kathleen L. Sampson, Thomas Lacelle, Nathan Kredentser, Jacques Lefebvre, Luke Steven Young, Joseph Hyland, Rony E. Amaya, Jamshid Tanha, Patrick R. L. Malenfant, Hendrick W. de Haan, Chantal Paquet