Research Article

Synthesis of a Polyimide Porous Porphyrin Polymer for Selective CO2 Capture

Figure 6

(a) N2 at 77 K, (b) H2 at 77 K, (c) CO2 at 273 K and 298 K, and (d) CH4 at 273 K and 298 K. Adsorption (filled symbols) and desorption (empty symbols) isotherm curves.
(a)
(b)
(c)
(d)