Poster Presentations: Soft Matter

نویسندگان

  • Darya Asheghali
  • Alexander Tokarev
  • Oleksandr Trotsenko
  • Ian M. Griffiths
  • Howard A. Stone
  • Sergiy Minko
چکیده

Reactive spinning of nanoand microfibers that involves very fast diffusion-limited chemical reaction and ion exchange is very challenging for the major nanofiber formation methods. The two-droplet reactive magnetospinning method introduced here offers a new technique for spinning fibers when the polymer formation or post-polymerization modification is limited by diffusion. This method can be realized for two miscible or two immiscible liquids, each with their own merits. The technique is based on the magnetic field-directed collision of the ferrofluid droplets with the liquid droplets that contain complimentary reactants. The collision, beginning of the chemical reaction, and fiber drawing are self-synchronized. The reactive magnetospinning method is used to synthesize, cross-link, and chemically modify the fiber-forming polymers in the stage of fiber formation. It also provides new opportunities for the fabrication of magnetic and non-magnetic polymer fibers that can be used as scaffolds for tissue engineering and other biomedical applications.

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تاریخ انتشار 2016