Synthesis and Electrochemical Properties of Radical Bottlebrush Polymers
발표자
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초록
내용
Bottlebrush polymers (BBPs) consist of a linear backbone and grafted side chains. The high branch-to-backbone ratio in these systems causes BBPs to adopt different conformational behavior compared to linear polymers, making them a topic of interest. The most widely used synthetic method for BBPs is the ring-opening metathesis polymerization (ROMP) of macromonomers. Radical polymers are conductive polymers that are composed of nonconjugated macromolecular backbones and pendant groups that bear stable open-shell sites. Here, we synthesized norbornene functionalized poly(2,2,6,6-tetramethylpiperidinyloxy methacrylate) macromonomer via atom transfer radical polymerization and nitroxide radical coupling. We then synthesized the radial bottlebrush polymer via ROMP. Through these architecture changes, differences between linear radial polymers and radical bottlebrush polymers were compared via electron paramagnetic resonance, cyclic voltammetry, etc.