A strategy to synthesize PST_pc/PADETA IPNs was proposed.
PST_pc/PADETA IPNs had a large equilibrium capacity towards salicylic acid.
Adsorption of salicylic acid on PST_pc/PADETA IPNs was a fast process.
PST_pc/PADETA IPNs had a large dynamic capacity towards salicylic acid.
Regeneration of PST_pc/PADETA IPNs was regenerated after the adsorption process.