Conducting polymer coatings

Figure 16. General transmission-line model for a conducting polymer-coated electrode. CF is the faradaic pseudo-capacitance of the polymer film, while Rt and Rt are its electronic and ionic resistance, respectively. R, is the uncompensated solution resistance.

Figure 20. Schematic diagrams of mediated electrochemistry of a solution species at a conducting polymer-coated electrode.

Collins, G.E. and Buckley, L.J. Conductive polymer-coated fabrics for chemical sensing, Synth. Met., 78, 93 (1996). 

Conducting polymers have also been prepared as coatings on both natural and synthetic fibres and fabrics. For example, silk and wool [143,144] or nylon [145] have been coated. The Milliken Corporation developed the first commercial process for producing conducting polymer coated fabrics [146]. 

Probable applications in various fields like electro chromic displays, electronic devices, modified electrodes, chemical- and bio-sensors etc. [ 133] may be envisaged. Potentially, nanodimensional oxide- (Si02, Mn02 and Zr02) based composites of these polymers have shown promise as optical materials [50]. Conducting polymer-coated low Tg latexes of sub-micron (50-500 nm) dimensions are reported to find use in antistatic and anticorrosion applications [ 113]. In the light of this information it would be of interest to explore the usability of the corresponding MMT-based composites in these directions. 

Small LL interfaces have been used by Girault and co-workers (33-38) and by Senda et al. (39, 40). We have used a small hole formed in a thin glass wall (41-43). Figure 16 shows the voltammetric response of lauryl sulfate anion transport between water and nitrobenzene. Recent analytical applications of these microinterfaces have resulted in construction of gel-solidified probes. The advantage of such a modification is ease of handling (44-47). The immobilization can be extended further to studies of frozen interfaces, or even to solid electrolytes. Significantly, ITIES theory also applies to interfaces that are encountered in ion-doped, conductive, polymer-coated electrodes. 

T. Uchikoshi, S. Furumi, T. Suzuki, and Y. Sakka. Electrophoretic deposition of alumina on conductive polymer-coated ceramic substrates. J. Ceram. Soc. Japan, 114, 55-58 (2006). 

In the development and fabrication of molecular-based electronics, it is essential to have a good understanding of the chemistry and electronic struemre of the electroactive polymer interface with other polymers, semi-conductors and metals. A better understanding of the CT interactions at the polymer/metal interface will also facilitate the application of conductive polymer coatings for metal passivation and corrosion prevention [268]. An overview of measurement methods and quantum chemical calculation techniques for smdying the chemical and electronic structure of conjugated... 

Arjsiriwat S, Tanticharoen M, Kirtikara Aoki K et al. Metal-dispersed conducting polymer-coated electrode used for oxidase based biosensor. Electrochemistry Communications 2000 2 441-444. 

Takano, N., Takeda, S. and Takeno, N. (1991) Asymmetric electrooxidation of sulfides on chiral conducting polymer coated electrode. Intern. Sympos. Organic Reactions, Kyoto, hwg. 19-21. 

Other anode systems specially developed are sprayable conductive polymer coatings, metallized zinc coatings, and conductive paints. Typical primary anode for the conductive polymer or paints is platinized niobium wire attached to the concrete prior to application. Estimated cost is 76/m with a service life of five years. 

Conducting-Polymer Coating Techniques for Usual Oxidizable... 

Nanostructured Conducting-Polymer Coatings and Anticorrosion Protection... 

R. Hasanov and S. Bilgic, Monolayer and bilayer conducting polymer coatings for corrosion protection of steel in IM H2S04 solution. Prog. Org. Coatings, 64, 435-445 (2009). 

C. K. Tan and D.J. Blackwood, Corrosion protection by multilayered conducting polymer coatings, Corros Sci., 45, 545-557 (2003)... 

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