Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Gravimetric sorption isotherms (left axis) for CO2 (○), CH4 (Δ), and N2 (□) in (a) methanol-treated amine–PIM-1 membrane (77 μm thickness) and (b) PIM-1 membrane (50 μm thickness). Thin solid lines represent the fit of the data according to the dual mode sorption model and thick solid lines (right axis) represent the corresponding ideal sorption selectivity calculated from the curve fit.
