Enhanced methane sorption in densified forms of a porous polymer network
Multi-gram synthesis and densification is presented for a porous polymer network (PPN-4) examined as a possible vehicular methane storage material. Compaction at 17,000 psi doubled the bulk density of the material and unexpectedly increased microporosity within the material. As a result, the densified material exhibits higher excess gravimetric methane uptake and improved total volumetric methane uptake relative to the powder.
Kizzie, A., Dailly, A., Perry, L., Lail, M., Lu, W., Nelson, T., ... Zhou, H-C. (2014). Enhanced methane sorption in densified forms of a porous polymer network. Materials Sciences and Applications, 5(6), 387-394. https://doi.org/10.4236/msa.2014.56044