Patent ID: 7807140

Claim:
A metal chelating polymer having formula: and salts thereof, where: n indicates the average number of repeating units in the polymer and where the degree of polymerization (DP) ranges from 8-100; D is selected from C(R a ) 2 , O, S, NR N , or NCOR N ; each Z 1 -Z 4 , independently, is hydrogen or a hydroxyl group; R1 and R 2 are independently selected from hydrogen, aryl, ketone, aldehyde, or a -L 4 -R 10 group, where R 10 is selected from a reactive functional group, a targeting group, a labeling group, a particle, or a solid and L 4 is a linker; R 3 is a metal chelating group with or without a metal ion chelated in the chelating group, wherein R 3 has the formula: where the A ring is selected from: p and s are independently 0, 1, 2, or 3; q and r are independently 1, 2, or 3; R, R′, R″, R′″ are independently selected from the group consisting of hydrogen, halide, alkyl, alkenyl, alkynyl, aryl, alkoxy, aryloxy, thioalkoxy, ether, thioether, heterocyclic, hydroxyl, carboxyl, ester, amino, and amide groups, each of which is optionally substituted with one or more substituents selected from halide, amine, hydroxyl, alkyl, alkenyl, alkynyl, aryl, alkoxy, or aryloxy groups; R N is selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, ether, amine, amide, ester, and aryl groups, wherein one or more carbons of these groups is optionally substituted with one or more substituents selected from halide, hydroxyl, alkyl, alkoxy, aryl, or aryloxy groups; and R4 is a group other than a chelating group selected from a spacer group, a reactive functional group, a targeting group, a solubilizing group, a labeling group, an R M group, where R M is a group which carries a cyclic olefin group which reacts by ROMP, or a ROMP polymer side branch formed by ROMP polymerization from the R M group; wherein the metal chelating polymer contains at least one R 3 group and optionally contains multiple different R 4 groups.