Residual disinfection with N-halamine based antimicrobial paints

► A series of N-halamine polymers has been synthesized. ► The synthesized polymers were added into a water-based latex paint. ► The treated paints were rendered antimicrobial upon chlorination with bleach. ► The chlorine on the treated paints was remarkably stable toward light irradiation. ► The light exposed samples inactivated 6-log of bacteria within 5-10 min.