Correlation between Cohesive Energy Density, Fractional Free Volume, and Gas Transport Properties of Poly(ethylene-co-vinyl acetate) Materials

Figure 2

Correlation of permeability with (a) 1/FFV and (b) CED/FFV for the EVA based materials including both pure EVA copolymers (empty points) and their blends (+). Straight lines represent linear regressions of the experimental data. Numbers on the top axis represent vinyl acetate content. The plots for CO₂, O₂, and N₂ shown in (a) are based on the data taken from our previous work [17] with permission from A. Wolinska-Grabczyk, P. Kubica, A. Jankowski, and J. Membrane Sci., 443, 227-236, Elsevier, copyright 2013.

(a)

(b)