Recent advances towards applications of molecular bottlebrushes and their conjugates

Mesoscale Modeling of Agglomeration of Molecular Bottlebrushes: Focus on Conformations and Clustering Criteria

“…Molecular bottlebrushes (MBBs) are branched macromolecules with the side chains densely grafted to the linear backbone [1][2][3][4][5][6]. The structural characteristics of the bottlebrushes can be tailored during their synthesis by regulating their grafting density, degrees of polymerization of the side chains and the backbone, and chemical composition [6][7][8][9].…”

“…However, due to the limited resolution of available experimental techniques [53,54], it remains challenging to distinguish the bottlebrushes within clusters and characterize their conformations. Computational modeling allows one to understand and predict bottlebrush conformations under various conditions [5,22,23,51,52,[55][56][57][58][59][60][61][62][63][64]; current modeling efforts focusing on characterizing self-assembly of bottlebrushes are surveyed in a recent review by Mohmmadi et al [65].…”

Highly Oil-Repellent Thermoplastic Boundaries via Surface Delivery of CF3 Groups by Molecular Bottlebrush Additives

“…With this in mind, we selected MBB chain architecture for the next generation of PFPE-based macromolecular additives, PFMs, to generate highly oil-repellent thermoplastic boundaries. Bottlebrushes, a special case of graft copolymers, are linear macromolecules with relatively long side chains anchored to the backbone at high grafting densities . The dense grafting results in a conformationally frustrated system, where the polymer chains can be significantly stretched and have increased persistence length. , This results in localization of the side chain end groups at the exterior of the macromolecule and restriction of their conformational mobility.…”

“…Bottlebrushes, a special case of graft copolymers, are linear macromolecules with relatively long side chains anchored to the backbone at high grafting densities . The dense grafting results in a conformationally frustrated system, where the polymer chains can be significantly stretched and have increased persistence length. , This results in localization of the side chain end groups at the exterior of the macromolecule and restriction of their conformational mobility. It has also been shown, theoretically and experimentally, that MBBs have a tendency to expose their end-groups to the material boundary and migrate to the surface when added to a host polymer. − Thereby we have hypothesized that the PFM macromolecules can deliver and immobilize a significant fraction of CF 3 end groups of PFPE side chains at the material’s surface.…”

“…34 The dense grafting results in a conformationally frustrated system, where the polymer chains can be significantly stretched and have increased persistence length. 34,35 This results in localization of the side chain end groups at the exterior of the macromolecule and restriction of their conformational mobility. It has also been shown, theoretically and experimentally, that MBBs have a tendency to expose their end-groups to the material boundary and migrate to the surface when added to a host polymer.…”