Effect of comonomer on the Cu-BDC/Poly(NMA-coSAS) foams templating from CO2-in-water emulsion: Adsorptive and bacteriostatic applications

Abstract

Herein, Cu-BDC/poly(N-methylol acrylamide-co-sodium allyl sulfonate) [Cu-BDC/P(NMA-co-SAS)] macroporous foam was synthesized templating from CO2-in-water (C/W) high internal phase emulsions (HIPEs), and using Cu-BDC as Pickering emulsifier. The features of the macroporous monolith, such as structure and void diameter, can be adjusted by changing the emulsion composition. The resultant macroporous foams have a low bulk density (0.317 g cm−3), high porosity (79.60 %), suitable pore volume (3.956 cm3 g-1), and pore size ranging from 5.46 μm to 36.47 μm. The maximum swelling degree of 20.7 g/g for the composite foam was obtained when a high MBAM dosage of 12.5 wt% was used. Moreover, adsorption behavior and antibacterial property of the composite foam with 5.0 wt% Cu-BDC were investigated. The results proved that the obtained foam could behave as a potential multi-functional antibacterial material.