A preliminary study of conducting polymers as microvalve seals
A preliminary study of conducting polymers as microvalve seals
We report here on the first investigation into the behaviour of conducting polymers as seals for microvalves. Poly(pyrrole) is known to be reasonably stable in air and is also one of the easiest conducting polymers to synthesise either by chemical or electrochemical polymerisation. It is known to offer interesting tribological properties and so is chosen as the exemplar material here. Poly(pyrrole) with three dopants, namely 1-decanesulfonate (DSA), methylphosphonate (MPA) and 1-butanesulfonate (BSA) films were deposited electrochemically with a thickness between 0.5 and 1.5 mum, on gold electrodes patterned on Si-wafer (4 x 4 mm). Test results show that the leakage rate for the PPY films can be down to 0.5 cm(3) min(-1). The PPY films doped with MPA have the best performance. The effects of the choice of the electrochemical deposition conditions and resulting morphology, the film thickness and the choice of counter-ions on the leakage rate are also discussed.
conducting polymers, poly(pyrrole) films, microvalve, leakage rate, tribological properties, polypyrrole, poly(pyrrole), junctions, sensors
62-67
Fang, Q.
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Chetwynd, D.G.
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Gardner, J.W.
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Toh, C.
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Bartlett, P.N.
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25 August 2003
Fang, Q.
fc0ef676-b862-4517-b79e-c1e3ed3803c0
Chetwynd, D.G.
b9a1b79d-8f6d-4444-b002-f1b72abc9d02
Gardner, J.W.
2a4709f5-6243-4b73-8995-a7137c1d2315
Toh, C.
cd0e8f13-af25-40fb-89ae-40c753e392f4
Bartlett, P.N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Fang, Q., Chetwynd, D.G., Gardner, J.W., Toh, C. and Bartlett, P.N.
(2003)
A preliminary study of conducting polymers as microvalve seals.
Materials Science and Engineering: A, 355 (1-2), .
(doi:10.1016/S0921-5093(03)00047-9).
Abstract
We report here on the first investigation into the behaviour of conducting polymers as seals for microvalves. Poly(pyrrole) is known to be reasonably stable in air and is also one of the easiest conducting polymers to synthesise either by chemical or electrochemical polymerisation. It is known to offer interesting tribological properties and so is chosen as the exemplar material here. Poly(pyrrole) with three dopants, namely 1-decanesulfonate (DSA), methylphosphonate (MPA) and 1-butanesulfonate (BSA) films were deposited electrochemically with a thickness between 0.5 and 1.5 mum, on gold electrodes patterned on Si-wafer (4 x 4 mm). Test results show that the leakage rate for the PPY films can be down to 0.5 cm(3) min(-1). The PPY films doped with MPA have the best performance. The effects of the choice of the electrochemical deposition conditions and resulting morphology, the film thickness and the choice of counter-ions on the leakage rate are also discussed.
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More information
Published date: 25 August 2003
Keywords:
conducting polymers, poly(pyrrole) films, microvalve, leakage rate, tribological properties, polypyrrole, poly(pyrrole), junctions, sensors
Organisations:
Chemistry
Identifiers
Local EPrints ID: 19949
URI: http://eprints.soton.ac.uk/id/eprint/19949
ISSN: 0921-5093
PURE UUID: b1af482b-b1ce-4182-a900-a2cce4e162a1
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Date deposited: 23 Feb 2006
Last modified: 16 Mar 2024 02:42
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Contributors
Author:
Q. Fang
Author:
D.G. Chetwynd
Author:
J.W. Gardner
Author:
C. Toh
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