Smart waterborne coatings with tunable barrier properties

Waterborne acrylic emulsion polymers are widely used coating materials due to their excellent properties and low cost. Although good barrier properties for a variety of migrants can be achieved, their performance is often insufficient for highly demanding applications due to their intrinsic non-zero permeability for both polar and non-polar migrants. Barrier properties can be enhanced by blending in impermeable materials. Following an entirely new strategy, in the current proposal we develop unprecedented polymer coatings having tunable barrier properties allowing selective interception of migrants.