Abstract

A water-dispersible bottlebrush polymer with well-regulated length (300 nm) and width (20 nm) was developed for uptake of hydrophobic guest in aqueous media. This bottlebrush polymer was designed to adopt a core-shell structure, being composed of a polynorbornene backbone that is densely grafted with side chains with an AB diblock sequence (inside A block = polystyrene; outside B block = poly{[2-(methacryloyloxy)ethyl]trimethylammonium iodide}. Owing to the cationically charged shell part, the core-shell type of bottlebrush polymer was stably dispersed in water and also was able to accommodate a hydrophobic guest chromophore at the core part.

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