Figure shows the supply chain of multifunctional thiol monomers. Mercaptopropionates are derivable from mercaptopropionic acid and a multifunctional alcohol by Fischer esterification reaction. This process is already commercialized by several companies, including Bruno Bock. The addition of hydrogen sulfide on acrylic acid, both of which are high-volume commodity feedstocks, produces mercaptopropionic acid. Increasingly, acrylic acid production occurs from renewable resources. As a result, we expect the thiol monomers to be cost-competitive in regards to commodity polymer materials. Therefore, the poly(imide ester) photopolymer developed in this work will be readily scalable, since the chemical supply chain already exists and only involves high-volume, low cost building blocks. Furthermore, besides the cost of monomers, material costs also include operational expenses. Figure shows the process of applying polyimide materials in device fabrication. Aromatic polyimides are very difficult to flow even at elevated temperature, since their T g is >300 °C. In practice, poly(amic acid) is first cast into the substrate' formfactor and then heated typically between 200 °C and 300 °C to undergo imidization over the course of hours, which requires a large energy input. 31 By contrast, Figure shows the workflow of the photopolymerized substrates, which involves straightforward resin casting and photopolymerization on the scale of minutes. Beyond enabling advanced manufacturing workflows via photopatterning, at industrial scale this time and energy-input savings represents a significant improvement over alternatives.