The Influence of the Morphology of Block Copolymers on Their Gas Permeability

Percolational Effect of Siloxane Content in Poly(amideimide siloxane) on the Gas Permeation Behavior

“…However, a small amount of gas permeates through poly(amideimide) domains before siloxane spanning. Most copolymers have D A / D B ≠ 0, where, D A and D B are the diffusivities of impermeable phase and permeable phase, respectively. However, the increase of gas permeability through the poly(amideimide) domain can be relatively negligible when compared with the increase of the gas permeability of flexible domains such as spanned siloxane.…”