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. Author manuscript; available in PMC: 2013 Nov 27.
Published in final edited form as: Macromolecules. 2012 Nov 13;45(22):8939–8952. doi: 10.1021/ma301568u

Figure 6.

Figure 6

Schematic structures of step-growth DTPA-bis-amide polymers having differing copolymerization chemistry, where the chelates are linked via A) alkyl chains,26 B) a cyclohexyl group,27,28 C) disulfide,28–32 and D) tartaramide29