The self‐organization and dynamics of bottlebrush polymers consisting of poly(2‐bromoisobutyryloxyethyl methacrylate) (PBiBEM) backbone and grafted n‐butyl acrylate (PBA) chains are studied as a function of the side‐chain length by X‐ray scattering, dielectric spectroscopy, and rheology in relation to the respective homopolymers. All short‐range correlations are dominated by the PBA side chains, whereas long‐range correlations reflect the screening of the backbones by the side chains. Such correlations show up also in the segmental dynamics. The PBA segmental dynamics are slowed‐down, whereas the backbone dynamics are plasticized by the side chains. Overall the bottle‐brush architecture imparts dynamic homogeneity to the backbone and side‐chain dynamics.
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Grigoriadis et al. (2012) studied this question.
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