Bottlebrush polymers are a type of polymers with a linear backbone and long side chains attached to each repeat unit of the backbone. The unique architecture leads to a number of special properties and applications, e.g. low solution viscosity compared to linear polymers with the same molecular weight due to the absence of chain entanglement; super soft materials; adsorption-induced scission of C–C bonds; large self-assembly domain sizes lead to photonic crystals; low critical micelle concentration compared to linear diblock copolymers, etc. In this study, macromonomers with AB type functional groups or with AA and BB type functional groups at one chain end, where A means alkyne and B means azide, were synthesized, and subsequently polymerized into bottlebrush polymers via copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC) "click" polymerization of the macromonomers. By using this method blocked brush polymers, star-shaped brush polymers, Janus armed brush copolymers, etc. could be synthesized easily via a one-pot reaction.

Synthesis of bottlebrush (co)polymers via direct "click" polymerization of macromolecules

2019 Spring National Meeting

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