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. Author manuscript; available in PMC: 2018 Feb 26.
Published in final edited form as: Polym Chem. 2011 Oct 12;3(1):66–80. doi: 10.1039/C1PY00314C

Scheme 6.

Scheme 6

Synthesis and hydrolysis of ‘charge-shifting’ cationic polymers by reaction of pendant azlactone functionality of PVDMA with a tertiary amine containing hydroxyl functionality. The resulting amide/ester linker in the side chain of the polymer hydrolyzes in aqueous media to release amine functionality and unmask anionic carboxylate functionality. Adapted with permission from reference [36].