Synthesis of diallyl bisimide monomers and thiol-ene polymer networks. Reports have shown that linear poly(ester imide)s exhibit excellent e-substrate properties similar to traditional polyimides. However, to our knowledge there are only two examples in literature of poly(ester imide)s produced by thiol-ene polymerizations. Using thiol-ene polymerization containing imide groups, Shipp et al. showed a maximum T g of 13 °C with diallyl bisphenone imide and ethylene glycol dithiol monomers, but with no report of mechanical properties; Zhang et al. produced a crosslinked thiol-ene polymer from bis maleimide and trimethylolpropane tris(3-mercaptopropionate) (TMPMP) thiol monomers, showing broad T g 's in the range of 40-90 °C and tensile strength up to 23 MPa. To fully understand the potential application in electronic substrates, we conduct a thorough investigation of the material property space of bisimidebased thiol-ene polymers. We aim to synthesize glassy network polymers with high T g 's, high tensile strength, high resistance to thermal decomposition, and favorable electrical properties.