Permeance values for the materials with the agents could not be measured because of the sensitivity of the Oxtran sensor to volatile organic compounds and their interference with
the chromatographic detector used in the assays with CO2.
Effect of the agents in the barrier properties of the coatings should be negligible since, plasticization should not be expected from the addition of apolar substances to a polar matrix and agents with double functionality which could promote chain cross-linking are not present.