Patent ID: 8735455

Claim:
An article comprising a modified grafted support of Formula (V) SS-(CO)—NH—C(R 1 ) 2 —(CH 2 ) p —(CO)-Q-Y 1 -Q-(CO)—CR 2 U 4 —CH 2 —U 3 (V) wherein SS comprises a solid support; p is an integer equal to 0 or 1; each R 1 is each independently selected from alkyl, heteroalkyl, aryl, or aralkyl; Y 1 is a first linking group comprising an alkylene, heteroalkylene, arylene, or combination thereof; each Q is independently a divalent group selected from oxy, thio, or —NR 3 — where R 3 is hydrogen, alkyl, heteroalkyl, aryl, or aralkyl; each R 2 is independently hydrogen or an alkyl; U 3 comprises at least one divalent monomeric unit of formula CR 2 (Y 2 L-T)-CH 2 —; Y 2 is a second linking group selected from a single bond or a divalent group comprising an alkylene, heteroalkylene, arylene, or combination thereof; U 3 includes at least one divalent monomeric unit of formula —CR 2 (Y 2 L-T)-CH 2 —; U 4 is hydrogen or comprises at least one divalent monomeric unit of formula —CR 2 (Y 2 L-T)-CH 2 —; L is an attachment group formed by reacting group Z 1 with a modifying group A of a modifying agent A-T; Z 1 is a 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 or a precursor of the azlactone group, (5) a glycidyl group, or (6) a combination thereof; and T is a remainder of the modifying agent A-T and is equal to the modifying agent A-T minus the modifying group A.