Polypyrrole-polyvinylidene difluoride composite stripe and zigzag actuators foruse in facial robotics

Yonas Tadesse, Shashank Priya, C. Ramannair Chenthamarakshan, Norma R. De Tacconi, Krishnan Rajeshwar

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Composite stripe and zigzag actuators consisting of a sandwich polypyrrole (PPy)/polyvinylidene difluoride (PVDF)/PPy structure were synthesized using potentiodynamic film growth on gold electrodes. The synthesis was done from an aqueous solution containing tetrabutylammonium perchlorate and pyrrole by polymerization at room temperature. The actuator displacement was modeled using finite element simulations. For depositing thin PPy films and thereby minimizing the response time, experimental optimization of the deposition conditions was performed. The number of current-potential (potentiodynamic) growth cycles and the thickness of the deposited PPy film were highly correlated in the initial stages of polymer film growth. The actuation response measurements indicate that the zigzag shaped actuators provide promising properties to develop artificial muscle.

Original languageEnglish (US)
Article number025001
JournalSmart Materials and Structures
Issue number2
StatePublished - Apr 1 2008

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Civil and Structural Engineering
  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering


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