Abstract
Poly[(vinylidene difluoride)-co-(chlorotrifluoroethylene)] (P(VDF-CTFE)) and P(VDF-CTFE)/poly(methyl methacrylate) (PMMA) cross-linked blends were exploited as ionic electroactive polymer (i-EAP) actuators with electrolyte ionic liquid 1-ethyl-3-methylimidazolium trifluoromethanesulfonate [C 2mim][TfO] for the first time. Compared to the traditional i-EAPs that are based on Nafion or Aquivion (Hyflon) ionomers, i-EAP actuators made with P(VDF-CTFE) and P(VDF-CTFE)/PMMA polymers exhibited remarkably enhanced actuation strain and significantly reduced electrical capacitance. The increase in the strain-charge ratio ε/C indicates that this improvement is a direct result of improved elastic coupling between the [C 2mim][TfO] electrolyte and the polymer matrix. As a result, an order-of-magnitude improvement in electromechanical energy conversion efficiency is achieved for both P(VDF-CTFE) and P(VDF-CTFE)/PMMA polymer-based actuators, which makes them promising polymer matrices for i-EAP actuators.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 5128-5133 |
| Number of pages | 6 |
| Journal | Macromolecules |
| Volume | 45 |
| Issue number | 12 |
| DOIs | |
| State | Published - Jun 26 2012 |
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All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry
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Enhanced electromechanical response of ionic polymer actuators by improving mechanical coupling between ions and polymer matrix. / Liu, Yang; Ghaffari, Mehdi; Zhao, Ran; Lin, Jun Hong; Lin, Minren; Zhang, Qiming.
In: Macromolecules, Vol. 45, No. 12, 26.06.2012, p. 5128-5133.Research output: Contribution to journal › Article
TY - JOUR
T1 - Enhanced electromechanical response of ionic polymer actuators by improving mechanical coupling between ions and polymer matrix
AU - Liu, Yang
AU - Ghaffari, Mehdi
AU - Zhao, Ran
AU - Lin, Jun Hong
AU - Lin, Minren
AU - Zhang, Qiming
PY - 2012/6/26
Y1 - 2012/6/26
N2 - Poly[(vinylidene difluoride)-co-(chlorotrifluoroethylene)] (P(VDF-CTFE)) and P(VDF-CTFE)/poly(methyl methacrylate) (PMMA) cross-linked blends were exploited as ionic electroactive polymer (i-EAP) actuators with electrolyte ionic liquid 1-ethyl-3-methylimidazolium trifluoromethanesulfonate [C 2mim][TfO] for the first time. Compared to the traditional i-EAPs that are based on Nafion or Aquivion (Hyflon) ionomers, i-EAP actuators made with P(VDF-CTFE) and P(VDF-CTFE)/PMMA polymers exhibited remarkably enhanced actuation strain and significantly reduced electrical capacitance. The increase in the strain-charge ratio ε/C indicates that this improvement is a direct result of improved elastic coupling between the [C 2mim][TfO] electrolyte and the polymer matrix. As a result, an order-of-magnitude improvement in electromechanical energy conversion efficiency is achieved for both P(VDF-CTFE) and P(VDF-CTFE)/PMMA polymer-based actuators, which makes them promising polymer matrices for i-EAP actuators.
AB - Poly[(vinylidene difluoride)-co-(chlorotrifluoroethylene)] (P(VDF-CTFE)) and P(VDF-CTFE)/poly(methyl methacrylate) (PMMA) cross-linked blends were exploited as ionic electroactive polymer (i-EAP) actuators with electrolyte ionic liquid 1-ethyl-3-methylimidazolium trifluoromethanesulfonate [C 2mim][TfO] for the first time. Compared to the traditional i-EAPs that are based on Nafion or Aquivion (Hyflon) ionomers, i-EAP actuators made with P(VDF-CTFE) and P(VDF-CTFE)/PMMA polymers exhibited remarkably enhanced actuation strain and significantly reduced electrical capacitance. The increase in the strain-charge ratio ε/C indicates that this improvement is a direct result of improved elastic coupling between the [C 2mim][TfO] electrolyte and the polymer matrix. As a result, an order-of-magnitude improvement in electromechanical energy conversion efficiency is achieved for both P(VDF-CTFE) and P(VDF-CTFE)/PMMA polymer-based actuators, which makes them promising polymer matrices for i-EAP actuators.
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U2 - 10.1021/ma300591a
DO - 10.1021/ma300591a
M3 - Article
AN - SCOPUS:84862900744
VL - 45
SP - 5128
EP - 5133
JO - Macromolecules
JF - Macromolecules
SN - 0024-9297
IS - 12
ER -