Fig. 2: 3D printing of MenLp1–IsoLp2 (30:70 wt%) and depolymerization of printed parts.
From: A renewably sourced, circular photopolymer resin for additive manufacturing
a, Chemical composition of formulated resin. b, High-resolution printing of 3D-printed part containing intricate square arrays and bridges. c, x–y printing accuracy determined by comparing surface area of squares to curing time (pixel size 30 µm). Theoretical surface area of each square and number of squares (sample size): 4 mm2 (n = 3); 1 mm2 (n = 4); 0.25 mm2 (n = 5); 0.0625 mm2 (n = 6). Centre value is average surface area and error bars indicate 1 standard deviation. d, 3D-printed complex part. e, Photograph of powdered 3D-printed parts. f, Photograph of recovered resin from depolymerized 3D-printed parts, achieved in 98% yield. g, SEC of initial resin compared to recovered resin (CHCl3 + 0.5% v/v NEt3, against polystyrene standards, refractive index (RI) detector). Scale bar, 2 mm (b).
