By Gordon G. Wallace, Peter R. Teasdale, Geoffrey M. Spinks, Leon A. P. Kane-Maguire
Rapid advances in man made polymer technology and nanotechnology have published new avenues of improvement in conductive electroactive polymers that take higher good thing about this flexible category of fabrics’ exact houses. This 3rd variation of Conductive Electroactive Polymers: clever Polymer structures keeps to supply an in-depth figuring out of ways to engineer dynamic houses in inherently carrying out polymers from the molecular point.
New to the 3rd variation:
- Biomedical, MEMS, and digital fabric applications
- The synthesis and fabrication of nanocomponents and nanostructures
- The power function of nanotechnology in enhancing the functionality of engaging in fabrics in devices
- Electrochemical Raman, electrochemical ESR, and scanning vibrating reference electrode studies
After setting up the elemental ideas of polymer chemistry, the ebook pinpoints the dynamic houses of the extra helpful engaging in polymers, comparable to polupyrroles, polythiophenes, and polyanilines. It then demonstrates how the keep watch over of those houses permits state of the art functions in nano, biomedicine, and MEMS in addition to sensors and synthetic muscle groups. next chapters speak about the impact of nanodimensional keep watch over at the resultant properties.
Updated to mirror significant advancements and advances that experience happened long ago few years, this 3rd variation of Conductive Electroactive Polymers unlocks a global of strength for integrating and interfacing conductive polymers.
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Extra resources for Conductive Electroactive Polymers
By incorporating the target species as the dopant in the conducting polymer, the redox chemistry of the polymer can be used to release the target species at the desired time. Both anionic and cationic species can be incorporated into the polymer and released at the desired time. Anionic species are the usual dopant ions incorporated with PPy, PAn, and PTh polymers; however, it is also possible to trap cations. The incorporation of cations involves synthesizing the polymer using a large, immobile polyanion such as poly(vinyl sulfonate).
137,138 In one study,139 the surface energies of polyaniline and polythiophene CEPs were found to change significantly by oxidation and reduction. By producing a gradient in the doping level of a polyaniline film, a water droplet was made to move toward the reduced side. In a separate study,140 polypyrrole coated on microchannels was made to move the electrolyte in the channel by reducing the polypyrrole. Communication and Characterization Tools An important criterion in choosing intelligent material building blocks is that we be able to communicate with the assemblages produced from them.
0 E-Volt vs. 0 E-Volt vs. 24 Communication with the PPy/DS electrode in solution: (a) cyclic voltammetry, (b) electrochemical quartz crystal microbalance readout, (c) resistometry readout. (Printed with permission from Materials Science Forum, Vol. ” A. Talaie, G. G. Wallace, 1995, p. 188, Trans Tech Publications, Switzerland). potentials scanned in 1 M NaCl. In this case, mass loss (due to anion movement) as the potential is scanned to a more negative value is minimal. 5). Note also that the potential-resistance profile is markedly different from that obtained when PPy/Cl is reduced.