Patent ID: 8186519

Claim:
A monolith type polymer separation medium comprising a porous object comprising a three-dimensional network skeleton of a cured epoxy resin and interconnecting pores, characterized in that: the three-dimensional network skeleton forms a non-particle-aggregation type porous object constituted of a three-dimensional branched columnar structure; a proportion of aromatic-ring-derived carbon atoms to all the carbon atoms constituting the cured epoxy resin is 0.10 to 0.65; and the porous object has a porosity of 20% to 80% and an average pore diameter is 0.5 μm to 50 μm, wherein the porous object has a separation factor (α T/O ), expressed by a ratio (k′ T /k′ O ) of distribution coefficients of triphenylene and o-terphenyl, of not less than 2.