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Keywords:

  • block copolymers;
  • data storage;
  • molecular dynamics;
  • phase separation;
  • thin films
Thumbnail image of graphical abstract

Going through the motions: The molecular cooperative motion between azobenzene moieties and photoinert cyanobiphenyl groups can be confined to nanoscale mesogenic domains by microphase separation of a triblock copolymer with a poly(methyl methacrylate) (PMMA) matrix (see picture). Films of the copolymer have a large anisotropy, stable birefringence, and improved transparency due to elimination of the scattering of visible light.