Studies on syntheses and permeabilities of special polymer membranes. XX. Permeabilities of alcohols and hydrocarbons through acrylonitrile‐butadiene‐styrene terpolymer membranes

The permeabilities of n‐alcohols and n‐hydrocarbons through acrylonitrile‐butadiene‐styrene terpolymer membranes were investigated. The permeation rates of linear alcohols and hydrocarbons were found to decrease with an increase in number of carbon atoms in the alcohol and hydrocarbon molecules. These permeation rates, the contents of the permeating species in the membranes, and the burst strengths of the membranes were influenced by the molecular sizes, solubility parameters, viscosities, modified Small's numbers, and surface tensions of the permeating molecules. It was found that the interactions between the membrane and the hydrophobic groups were far smaller than those with the polar groups, however, the former interactions were not negligible.