Block copolymer self-assembly has become an important tool for manipulation of properties in soft materials, wherein ordered nanoscale morphologies impart unique properties often unattainable in homogeneous polymer systems. Many applications are now benefitting by incorporation of block copolymer architectures, spanning a range of end uses ranging from adhesives to materials for advanced lithographic patterning. Block composition, chain architecture, molecular weight, and polydispersity all effect order and morphology in these materials. In particular, polydispersity has been found to have a dramatic impact on the length scale of phase separated nanostructures. This presentation will highlight some of the interesting consequences of polydispersity on block copolymer phase behavior and its impact on material properties and applications.

Polydispersity in block copolymer self-assembly: From photonic polyethylene to advanced lithographic patterning

251st National Meeting (2016)

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