A polypyrrole rotor driven by sorption of water vapour

The polypyrrole films containing perchlorate were electrochemically synthesized and the bending and recovery motion of the film obtained have been investigated

Hidenori Okuzaki

2002

Key concepts

Scholarcy highlights

  • The polypyrrole films containing perchlorate were electrochemically synthesized and the bending and recovery motion of the film obtained have been investigated
  • The principle of motion was based on a reversible sorption of water vapour on one side of the film, causing an expansion of the film surface
  • On the basis of this phenomenon, we have devised a polypyrrole rotor driven by sorption of water vapour, producing a continuous rotation at a speed of 21 cm min−1

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