(a) General structures for SNPs without thioester-containing acrylate (C-SNP, control) or with thioester-containing acrylate (TE-SNP). (b) Toughness measured in tensile testing with 15 wt % control SNPs, 15 wt % TE-SNPs, or without filler when TTE is inactive (0 mol % DABCO) or active (9 mol % DABCO). (c) representative stress–strain curves for tensile testing films with C-SNPs, with TE-SNPs, or without filler. Variation in mechanical properties is clearly seen with the addition of catalyst (solid lines) compared to catalyst-free formulations (dashed lines). All error bars represent the standard error.