The effect of drawing on the oxygen permeability of poly(ether ether ketone) films has been examined. Sample characterization by density and refractive index measurements indicates that the two-fold reduction observed in passing from the amorphous isotropic to the highly drawn state is only partly explained by crystallinity increases and that molecular orientation shown by birefringence is also important.
Посилання на статтю:
The permeation of oxygen through drawn films of poly(ether ether ketone) / G. A. J. Orchard and I. M. Ward // Polymer. – 1992. – Vol 33. – P. 4207-4209.