The synthesis of benzimidazole-linked polymers (BILPs) and borazine-linked polymers (BLPs) and their use in small gas storage and separation studies will be presented.  BILPs exhibit moderate surface area, high chemical and thermal stability, and remarkable gas uptake and selectivity. The highest selectivity based on initial slope calculations at 273 K was observed for BILP-2: CO2/N2 (113) and CO2/CH4 (17) while the highest storage capacity was recorded for BILP-4: CO2 (24 wt% at 273 K and 1 bar) and H2 (2.3 wt% at 77 K and 1 bar).  On the other hand, borazine-linked polymers can be targeted to have very high surface area (up to 2866 m2 g-1) and considerable hydrogen storage (1.93 wt%, 77 K/ 1.0 bar) making them very attractive especially for on-board hydrogen storage applications. These selectivities and gas uptakes make both classes of material very promising for future use in gas storage and separation applications.

Small gas storage and selective uptake by pore-functionalized porous organic polymers

244th National Meeting (2012)

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