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Densely grafted brushes with poly(n-butyl acrylate)-block-polyacrylonitrile (PBA-b-PAN) block copolymers (BCPs) as side chains were synthesized by atom transfer radical polymerization (ATRP) using a “grafting from” technique. Owing to the covalent linkage of the arms to the backbone and the resulting strong steric repulsion between the BCP side chains, these bottlebrushes successfully overcame the...
Polymer bottlebrushes may be viewed as hairy flexible cylinders with a long backbone and a thick corona of densely grafted polymer chains. The corona not only controls the bottlebrush diameter, but also provides an additional drag force. We report the study of backbone scission by external forces caused by ultrasonication. A series of bottlebrushes with the same backbone and different side-chain lengths...
Hybrid nanoparticles with a silica core and grafted poly(methyl methacrylate) (PMMA) or poly(n‐butyl methacrylate) (PBMA) chains were prepared via activators generated by electron transfer for atom transfer radical polymerization (AGET ATRP) at room temperature under high pressure. Due to enhanced propagation rate constant and reduced termination rate constant for polymerizations conducted under high...
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