Journal of Polymer Science Part B: Polymer Physics, Vol.32, No.14, 2375-2382, 1994
The Effect of Water on the Transport of Oxygen Through Nylon-6 Films
The effect of presence of water on the transport of oxygen through films of Nylon-6 was evaluated at 5, 23, and 40-degrees-C by permeation experiments. Through the oxygen permeability experiments it was found that the diffusion of oxygen through Nylon-6 is not a simple Fickian process and the total diffusion process can be expressed by a bimodal diffusion mechanism. Permeability, solubility, and diffusion coefficients were determined as a function of water activity for both mechanisms. The effect of sorbed water on the oxygen diffusion and solubility in the polymer is presented as a function of the state of water in the polymer and as a result of the molecular competition between water and oxygen.