This work focuses on the analysis of organic vapour sorption in polymer systems strongly deviating from ideality. The sorption of three different types of organics (i.e. alcohol, ether, ester) in polyurethaneimide block copolymers has been investigated using a microgravimetric technique over the entire activity range. For all the polyurethaneimides, sorption increases in the following order : ETBE

Keywords:DENSE SILICONE MEMBRANES;PREFERENTIAL SORPTION;ORGANIC-SOLVENTS;PERVAPORATION;POLYMER;POLYSTYRENE;PREDICTION;SEPARATION;SOLUBILITIES;EQUILIBRIA