Patent ID: 9725545
Date: 2017-08-08
CPC Classifications: B01D,B01J,C08F,C08J

Claim:
1. A porous polymeric resin having a hierarchical porous structure comprising 1) a first porous structure comprising a first set of pores associated with a bulk polymeric matrix and having an average pore diameter less than 200 nanometers and 2) a second porous structure comprising a second set of pores having an average pore diameter greater than 500 nanometers and that are distinct from the first set of pores, the porous polymeric resin comprising the reaction product of a reaction mixture comprising an aqueous phase monomer mixture wherein all or substantially all of the monomers in the monomer mixture have a lipophilicity index no greater than 20, the monomer mixture comprising a) a crosslinking monomer of Formula (I) in an amount of 55 to 99 weight percent based on a total weight of the monomer mixture, wherein R Q is oxy or —NH—; and Y is an alkylene or heteroalkylene, wherein Y can be optionally substituted with a hydroxyl group; and b) a functional monomer having (a) an ethylenically unsaturated group and (b) a first functional group selected from (1) an acidic group or a salt thereof, (2) an amino group or a salt thereof, (3) a hydroxyl group, (4) an azlactone group, (5) a glycidyl group, or (6) a combination thereof.