Nanoparticles and Nanocages Originating from Well-Defined Brush Block Copolymers

摘要

The preparation and study of nanostructures having controlled composition, size and shape, provided by brush block copolymer topologies will be discussed in this presentation. In the work that will be described, various combinations of living polymerization processes (ring opening metathesis, reversible addition fragmentation chain transfer, atom transfer radical and nitroxide mediated radical polymerizations) are used to construct the brush block copolymer framework, with accurate control over the backbone length, the side chain graft lengths, and the compositions of each.'' 2 This work ='f emphasizes the development of synthetic methodologies for the _preparation of the brush block copolymers, their further chemical and physical manipulation (including their shell crosslinking and core excavation to afford nanocages), in addition to extensive characterization of their compositions, structures and properties.