Benzoylformamides as new photocaged bases for photo-latent anion polymerization

Benzoylformamide (BFA) derivatives are proposed as new photocaged bases with good solubility in epoxy resin. Initially their structures were confirmed by 1H NMR, 13C NMR, and elemental analysis. Next, we detail their thermal stability, solubility behavior, and photolysis products. Furthermore, the model photo-latent anion polymerization (AP) of epoxide system in the presence of BFA-dBA (N,N-dibenzyl-2-oxo-2-phenylacetamide) as a photocaged base has been investigated, and excellent photopolymerization profile is obtained.

Benzoylformamide (BFA) derivatives as new photocaged bases for photo-latent anion polymerization are proposed.Figure optionsDownload as PowerPoint slide