Fig. 5 Diffusivity parameter
for (a) CO 2 , (b) N 2 , and (c) O 2
as a function of crystallinity,
X c . The represented symbols
are: crystalline polymers
(experimentation) (●),
crystalline polymers
(extrapolation) (○), liquid
crystalline polymers
(experimentation) (~), and
liquid crystalline polymers
(extrapolation) (Δ).
(Reprinted with permission
from J Membr Sci., 365, 40.
(Copyright (2010) Elsevier)
19 Gas Permeation and Barrier Properties of Liquid Crystalline Polymers
539