Gas Permeability of Polymers

TaUe 11.7. Gas permeabihty coefficients of most common polymers (in barrets)  

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The most important techniques used to determine gas permeability of polymers are the ISO 2556, DIN 53 380 and ASTM D 1434 standard tests. 

Permeabilities in Constant Volume/Variable Pressure Apparatus, J, Appl. Polym, Sci,, 20, 1921 (1976) Measurement of Gas Permeability of Polymers. II. Apparatus for Determination of Mixed Gases and Vapurs. J. Appl, Polym. Sci., 20, 287 (1976). 

Table 7.3 Gas permeabilities of polymers used for gas-separation membranes.

G. Maier, M. Wolf, M. Bleha, Z. Pientka, Gas permeabilities of polymers with indane groups in the main chain. 1. Poly(ether ketone)s, J. Memb. Sci. 143 (1-2) (1998) 105-113. 

Finkelshtein ESh, Makovetskii KL, Yampolskii YuP, Portnykh EB et al. (1991) Ring-opening metathesis polymerization of norbomenes with organosilicon substituents. Gas permeability of polymers obtained. Makromol Chem 192 1-9... 

To measure the permeation of a gas, the apparatus usually consists of a sample holder, a gas supplying system, a pressure measurement system and a measurement for the flow rate of the gas passed through the sample. A standard test method for determining gas permeability of polymer films is described in ASTM D1434, or DIN 53380. 

Kang, Y, Araki, K, Iwamoto, K., and Seno, M. (1982) Preparation and gas permeability of polymer blend membranes of polystyrene and poly[l,l,l-tris(trimethylsiloxy)methacrylate propylsilane). J. Appl. Polym. Sci., 27, 2025-2032. 

M and Kagawa, S. (1984) Modification of gas permeabilities of polymer membranes by plasma coating. J. Membrane ScL,... 

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