PERVAPORATION BEHAVIOR OF CHLORINATED HYDROCARBONS THROUGH ORGANOPHILIC MEMBRANES

The pervaporation behaviour of chlorinated hydrocarbons (Cl-HC's) was studied in detail. The permeability of different Cl-HC's through a hyd rophobic membrane was considered in relation to their molecular struct ure and some of their physicochemical properties. The hydrocarbons sel ected for this study differed in: the number and position of chlorine atoms, the chain length, the degree of branching and the presence of a double bond. The membranes were composite membranes: a dense top laye r consisting of PDMS (polydimethylsiloxane), filled with hydrophobic z eolite on a layer consisting of porous PAN (polyacrylonitrile) on poly ester fabric.