Thermochromic Responses on Melt Electrowritten Poly(ϵ-caprolactone) Microstructures

Melt electrowriting produces complex polymeric microstructures by controlling electrified polymer jet deposition. This work explores the potential of designing poly(ϵ-caprolactone) MEW with thermochromic responses. Samples up to 4 wt % dye content fibers 20.7 ± 0.9 μm have been processed without compromising printing quality. small amount filler results in desired active response color change at a certain temperature. A multimaterial structure combining two dyes different activation temperatures was also designed. Overall, ability include additives process significant disruption expands technology applicability.