HYDROLYZED DIVINYLBENZENE/MALEIC ANHYDRIDE POLYMERIC MATERIAL

摘要

Hydrolyzed divinylbenzene/maleic anhydride polymeric materials and methods of making these polymeric materials are provided. These polymers have a high BET specific surface area that results from the presence of micropores and/or mesopores. The polymers are useful for the adsorption of low molecular weight (e.g., no greater than 150 gram/mole), basic nitrogen-containing compounds.

主权项

1. A hydrolyzed polymeric material comprising a reaction product of
a) a non-hydrolyzed precursor polymer comprising a polymerized product of a polymerizable composition comprising
i) a monomer mixture comprising
1) 8 to 40 weight percent maleic anhydride based on a total weight of monomers in the monomer mixture; and2) 48 to 75 weight percent divinylbenzene based on the total weight of monomers in the monomer mixture; and3) 0 to 20 weight percent of a styrene-type monomer based on the total weight of monomers in the monomer mixture, wherein the styrene-type monomer is styrene, an alkyl substituted styrene, or a combination thereof; andii) an organic solvent comprising a ketone, an ester, acetonitrile, or a mixture thereof, wherein the polymerizable composition is a single phase prior to polymerization; and b) a hydrolyzing agent wherein the hydrolyzed polymeric material has a plurality of carboxylic acid groups and a BET specific surface area equal to at least 100 m2/gram.