<div>3D printing has enabled the unique combination of structures, geometries and functional properties </div><div>otherwise unattainable via traditional manufacturing techniques, yet its adoption as a mainstream </div><div>manufacturing platform for functional objects is hindered by the physical challenges in printing of </div><div>multiple materials. Vat polymerization offers a polymer chemistry-based approach to generating </div><div>smart objects, in which phase separation is controlled in

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... rder to achieve, at once, desirable </div><div>chemical and functional properties of final 3D printed objects, and indeed direct-production of 3D </div><div>printed smart objects. This study demonstrates how the spatial distribution of different material </div><div>phases can be modulated by controlling the kinetics of gelation, polymer network density and </div><div>material diffusivity through the judicious selection of photoresin components. A rich selection of </div><div>morphologies and functional coatings are generated, illustrating a promising way forward in the </div><div>integration of dissimilar materials in 3D printed smart or functional objects. </div>