An Electrolyte-Free Conducting Polymer Actuator that Displays Electrothermal Bending and Flapping Wing Motions under a Magnetic Field

Kyungchan Uh, Bora Yoon, Chan Woo Lee, Jong-Man Kim

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Electroactive materials that change shape in response to electrical stimulation can serve as actuators. Electroactive actuators of this type have great utility in a variety of technologies, including biomimetic artificial muscles, robotics, and sensors. Electroactive actuators developed to date often suffer from problems associated with the need to use electrolytes, slow response times, high driving voltages, and short cycle lifetimes. Herein, we report an electrolyte-free, single component, polymer electroactive actuator, which has a fast response time, high durability, and requires a low driving voltage (<5 V). The process employed for production of this material involves wet-spinning of a preorganized camphorsulfonic acid (CSA)-doped polyaniline (PANI) gel, which generates long, flexible, and conductive (∼270 S/cm) microfibers. Reversible bending motions take place upon application of an alternating current (AC) to the PANI polymer. This motion, promoted by a significantly low driving voltage (<0.5 V) in the presence of an external magnetic field, has a very large swinging speed (9000 swings/min) that lies in the range of those of flies and bees (1000-15000 swings/min) and is fatigue-resistant (>1000000 cycles).

Original languageEnglish
Pages (from-to)1289-1296
Number of pages8
JournalACS Applied Materials and Interfaces
Volume8
Issue number2
DOIs
StatePublished - 2016 Jan 20

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Conducting polymers
Electrolytes
Actuators
Display devices
Magnetic fields
Electroactive polymer actuators
Biomimetics
Electric potential
Muscle
Robotics
Durability
Sensors

Keywords

  • actuator
  • conducting polymer
  • electroactuation
  • microfiber
  • polyaniline
  • polydiacetylene
  • wet-spinning

Cite this

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abstract = "Electroactive materials that change shape in response to electrical stimulation can serve as actuators. Electroactive actuators of this type have great utility in a variety of technologies, including biomimetic artificial muscles, robotics, and sensors. Electroactive actuators developed to date often suffer from problems associated with the need to use electrolytes, slow response times, high driving voltages, and short cycle lifetimes. Herein, we report an electrolyte-free, single component, polymer electroactive actuator, which has a fast response time, high durability, and requires a low driving voltage (<5 V). The process employed for production of this material involves wet-spinning of a preorganized camphorsulfonic acid (CSA)-doped polyaniline (PANI) gel, which generates long, flexible, and conductive (∼270 S/cm) microfibers. Reversible bending motions take place upon application of an alternating current (AC) to the PANI polymer. This motion, promoted by a significantly low driving voltage (<0.5 V) in the presence of an external magnetic field, has a very large swinging speed (9000 swings/min) that lies in the range of those of flies and bees (1000-15000 swings/min) and is fatigue-resistant (>1000000 cycles).",
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An Electrolyte-Free Conducting Polymer Actuator that Displays Electrothermal Bending and Flapping Wing Motions under a Magnetic Field. / Uh, Kyungchan; Yoon, Bora; Lee, Chan Woo; Kim, Jong-Man.

In: ACS Applied Materials and Interfaces, Vol. 8, No. 2, 20.01.2016, p. 1289-1296.

Research output: Contribution to journalArticle

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