Post-polymerization CuAAC reactions are used to ‘click’ stimuli-cleavable triazole end-caps onto self-immolative poly(ethyl glyoxylate).

Self-immolative linkers offer efficient mechanisms for deprotecting 'caged' functional groups in response to specific stimuli. Herein we describe a convenient 'click' chemistry method for introducing pendant self-immolative linkers to a polymer backbone through post-polymerization modification. The intro duced triazole rings serve both to anchor the stimuli-cleavable trigger groups to the polymer backbone, while also forming a functional part of the selfimmolation cascade. We investigate the polymerization kinetics, postsynthetic modification, and self-immolation mechanism of a model polymer system, and discuss avenues for future studies on polypendant self-immolative triazoles as a modular, stimuli-responsive macromolecule platform.

<div> <div> <div> <p>Self-immolative linkers offer efficient mechanisms for deprotecting ‘caged’ functional groups in response to specific stimuli. Herein we describe a convenient ‘click’ chemistry method for introducing pendant self-immolative linkers to a polymer backbone through post-polymerization modification. The intro duced triazole rings serve both to anchor the stimuli-cleavable trigger groups to the polymer backbone, while also forming a functional part of the self-immolation cascade. We investigate the polymerization kinetics, post-synthetic modification, and self-immolation mechanism of a model polymer system, and discuss avenues for future studies on poly-pendant self-immolative triazoles as a modular, stimuli-responsive macromolecule platform. </p> </div> </div> </div>

<div> <div> <div> <p>Self-immolative linkers offer efficient mechanisms for deprotecting ‘caged’ functional groups in response to specific stimuli. Herein we describe a convenient ‘click’ chemistry method for introducing pendant self-immolative linkers to a polymer backbone through post-polymerization modification. The intro duced triazole rings serve both to anchor the stimuli-cleavable trigger groups to the polymer backbone, while also forming a functional part of the self-immolation cascade. We investigate the polymerization kinetics, post-synthetic modification, and self-immolation mechanism of a model polymer system, and discuss avenues for future studies on poly-pendant self-immolative triazoles as a modular, stimuli-responsive macromolecule platform. </p> </div> </div> </div>