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Poly(3-methylthiophene) electrochemical actuators showing increased strain and work per cycle at higher operating stresses

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Title: Poly(3-methylthiophene) electrochemical actuators showing increased strain and work per cycle at higher operating stresses
Authors: Xi, Binbin1, Truong, Van-Tan2, Whitten, Philip1, Ding, Jie1, Spinks, Geoffrey M.1 gspinks@uow.edu.au, Wallace, Gordon G.1
Source: Polymer. Oct2006, Vol. 47 Issue 22, p7720-7725. 6p.
Subjects: Thiophenes, Methyl groups, Actuators, Polymers, Electrochemistry
Abstract: Abstract: Conducting polymers, such as polythiophenes, are promising low voltage actuator materials. The performance of these materials has improved significantly in recent years. A remaining problem, however, is the significant decline in the actuation strain produced when the external stress is increased. Using a poly(3-methylthiophene) actuator in an ionic liquid electrolyte it is shown that the isotonic actuation actually increases with increasing applied stress. The work output per cycle consequently increases at higher stresses, which is very desirable for practical devices. Although theoretically predicted, these results are the first demonstration of the increased actuator performance at higher operating stresses. The actuation behaviour was found to be strongly dependent upon the operating electrolyte and explained by the shifts in the elastic modulus of the actuator material that occurred during operation. [Copyright &y& Elsevier]
Copyright of Polymer is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 22636638
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  Data: Poly(3-methylthiophene) electrochemical actuators showing increased strain and work per cycle at higher operating stresses
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  Data: <searchLink fieldCode="AR" term="%22Xi%2C+Binbin%22">Xi, Binbin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Truong%2C+Van-Tan%22">Truong, Van-Tan</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Whitten%2C+Philip%22">Whitten, Philip</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ding%2C+Jie%22">Ding, Jie</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Spinks%2C+Geoffrey+M%2E%22">Spinks, Geoffrey M.</searchLink><relatesTo>1</relatesTo><i> gspinks@uow.edu.au</i><br /><searchLink fieldCode="AR" term="%22Wallace%2C+Gordon+G%2E%22">Wallace, Gordon G.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Polymer%22">Polymer</searchLink>. Oct2006, Vol. 47 Issue 22, p7720-7725. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Thiophenes%22">Thiophenes</searchLink><br /><searchLink fieldCode="DE" term="%22Methyl+groups%22">Methyl groups</searchLink><br /><searchLink fieldCode="DE" term="%22Actuators%22">Actuators</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemistry%22">Electrochemistry</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: Conducting polymers, such as polythiophenes, are promising low voltage actuator materials. The performance of these materials has improved significantly in recent years. A remaining problem, however, is the significant decline in the actuation strain produced when the external stress is increased. Using a poly(3-methylthiophene) actuator in an ionic liquid electrolyte it is shown that the isotonic actuation actually increases with increasing applied stress. The work output per cycle consequently increases at higher stresses, which is very desirable for practical devices. Although theoretically predicted, these results are the first demonstration of the increased actuator performance at higher operating stresses. The actuation behaviour was found to be strongly dependent upon the operating electrolyte and explained by the shifts in the elastic modulus of the actuator material that occurred during operation. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Polymer is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.polymer.2006.08.063
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      – Code: eng
        Text: English
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        PageCount: 6
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        Type: general
      – SubjectFull: Methyl groups
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      – SubjectFull: Actuators
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      – SubjectFull: Polymers
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      – SubjectFull: Electrochemistry
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            NameFull: Truong, Van-Tan
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            NameFull: Spinks, Geoffrey M.
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              Text: Oct2006
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              Y: 2006
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