A simple permeation cell and gas chromatographic method are used to evaluate the effectiveness of barrier polymer films for packaging of "hard-to-hold" products. The cell incorporates features to minimize problems associated with similar methods. The equipment and results obtained with the procedure are discussed.
Hildebrand, J.H. and Scott, R.L., The Solubility of Non-Electrolytes, 3rd ed., Reinhold Publishing Corporation, New York (1950).
3.
Hopfenberg, H.B., PIA-181 Short Course, "Molecular Factors Affecting Transport of Small Molecules in Polymers," North Carolina State University - Raleigh (April 11, 1978).
4.
Cells were constructed at American Can Company's Neenah Technical Center Machine Shop.
5.
Ferrules are A.P.C. VK 14W-A 2.5 available from Alloy Products Corporation, Waukesha, Wisconsin.
6.
"Glu Stic" is a rub-on glue free of organic solvents and distributed by Faber-Castell Corporation, Newark, New Jersey.
7.
Lebovits, A. , Modern Plastics, 43(7):150 (March 1966).
