Porous polymer networks (PPNs), a class of purely organic materials with surface areas comparable to metal-organic frameworks (MOFs), exhibit high physicochemical stability due to covalent bonding in the network construction; this, despite the fact that most of them are amorphous, is desirable in practical applications. On the other hand, PPNs are superior to porous carbons in pore size distribution and control, which should lead to high gas-storage capacity.Herein we present a series of rationally designed PPNs with exceptionally high surface areas and their potential in H2 and CH4 storage applications. Additionally, functionalized PPNs designed to enhance interaction specifically with CO2 will be discussed in detail. The added merits of high CO2 heat of adsorption and high chemical stability have allowed us to achieve extraordinarily high CO2 adsorption-selectivity over other gases, primarily N2 and CH4.

Porous polymer networks for gas storage and separation

245th National Meeting (2013)

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