Composite granules including polymeric sorbent for reactive gases

Composite granules comprising:

• a binder;
• and
• a polymeric sorbent comprising a reaction product of
• (a) a precursor polymeric material comprising a polymerized product of a polymerizable composition comprising
• (1) 8 to 65 weight percent maleic anhydride based on the total weight of monomers in the polymerizable composition;
• (2) 30 to 85 weight percent divinylbenzene based on the total weight of monomers in the polymerizable composition;
• and
• (3) 0 to 40 weight percent of a styrene-type monomer based on the total weight of monomers in the polymerizable composition, wherein the styrene-type monomer is styrene, an alkyl-substituted styrene, or a combination thereof;
• and
• (b) a nitrogen-containing compound that is selected from ammonia or a compound having at least one primary amino group or at least one secondary amino group.