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Shear-Induced Orientation of Gyroid PS-b-P4VP(PDP) Supramolecules

Vukovic, I., Friedrich, H., Merino, D. H., Portale, G., ten Brinke, G. & Loos, K., Aug-2013, In : Macromolecular Rapid Communications. 34, 15, p. 1208-1212 5 p.

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DOI

  • Ivana Vukovic
  • Heiner Friedrich
  • Daniel Hermida Merino
  • Giuseppe Portale
  • Gerrit ten Brinke
  • Katja Loos

The phase behavior of block copolymer based supramolecular complexes polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) and amphiphilic pentadecylphenol (PDP) molecules resembles the phase behavior of conventional block copolymers. Several PS-b-P4VP(PDP) complexes are found to self-assemble into gyroid nanostructures. Typically, the grains are randomly oriented with a maximal size of several micrometers. Here, the orientation of a gyroid PS-b-P4VP(PDP) complex upon shearing is reported. It is found that the (111) gyroid lattice direction orients parallel to the shear direction after only several seconds of large amplitude oscillatory shearing. Oriented gyroid complexes can be used as templates for the preparation of metal nanofoams with improved ordering with potentially superior properties.

Original languageEnglish
Pages (from-to)1208-1212
Number of pages5
JournalMacromolecular Rapid Communications
Volume34
Issue number15
Publication statusPublished - Aug-2013

    Keywords

  • block copolymers, gyroid morphology, oscillatory shearing, shear-induced ordering, supramolecular complexes, BLOCK-COPOLYMER TEMPLATES, DIBLOCK COPOLYMERS, MORPHOLOGY, BEHAVIOR, PHASE, FLOW, ESRF

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