Porous materials are used in many areas, particularly in catalysis and separation science. PolyHIPE polymers, which are prepared from HIPE emulsions (high internal phase emulsions), which specialty is high proportion of internal phase, are highly porous materials that offer different properties and modification options, which increases their usefulness in many applications. Many methods available for functionalizing polyHIPE polymers have increased their usefulness for applications such as chemical synthesis, chromatography, ion exchange, wastewater treatment, separation, tissue engineering, and drug delivery.
PolyHIPE supports can be used to determine the thickness of the adsorbed layer on the surface of the pores of the monolith, by comparing the pressure drop generated by the mobile phase passing through the original monolith and the pressure drop under the same flow conditions when the same monolith is saturated with adsorbed molecules.
The aim of the master's thesis was to determine the thickness of the adsorbed layer in the pores of porous polyHIPE supports by measuring the pressure drop on the original monolith and after the formation of the layer. As part of my master's thesis, I estimated the thickness of the adsorbed layer by measuring the pressure drop on the original monoliths and on monoliths after adsorption of molecules on the pore walls of polyHIPE supports. Analysis of the size of adsorbed particles was performed using SEM microscopy.
Thickness of the adsorbed layer on the surface of the polyHIPE supports, calculated from pressure drop data obtained through experiments, matches the average thickness of the adsorbed silver particles, regardless of the porosity of the support, which indicates that the chosen method is simple, but reliable.
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