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Characterization of highly porous polymeric materials with pore diameters larger than 100 nm by mercury porosimetry and X-ray scattering methods.

This paper developed a multi-instrumental approach to characterising highly porous polymeric materials with pore sizes running on different scales. Such materials have been widely prepared in industry and yet their structures have remained very challenging to understand. Only the unique combination of four different techniques (high-resolution scanning electron miscroscopy, nitrogen sorption, mercury porosimetry and small angle x-ray scattering) can elucidate quantitatively both the network and the pore structures of this challenging class of porous materials. Each technique applied separately showed limited success in the characterisation of the selected specimens. However, when combined, structural information for the different specimens was revealed.