When mixed with thiol monomer, the thiol-ene resin mixture forms a stable liquid resin. (B) Photopolymerization reaction scheme of a diallyl bisimide monomer and a multifunctional thiol monomer, catalyzed by a free-radical photoinitiator and 405 nm light. The cured film is optically clear, as shown on top of a University of Utah logo and is flexible, as shown above the logo. The film is readily usable as electronic substrates, demonstrated by a functional circuit comprising liquid metal wires, a battery, and an LED bulb. (C) Depolymerization reaction scheme of the polyimide thiol-ene networks by transesterification reaction with methanol, catalyzed by potassium carbonate (K 2 CO 3 ). The mild depolymerization reaction condition enables recovery of the components.