By Peter Zarras, John D. Stenger-Smith, Yen Wei

Electroactive Polymers for Corrosion Control is designed to assist chemists and engineers hinder corrosion of metals. This booklet discusses electroactive polymers, electrically conductive polymers, and mechanisms of corrosion safety (passivation of metals).
Professor Alan MacDiarmid, 2000 Nobel Laureate, provides a quick evaluation of the background of electroactive fabrics with a common realizing of the synthesis of electroactive fabrics and corrosion in aqueous environments.
Several authors clarify the phenomena of corrosion and suggest mechanisms wherein electroactive polymers inhibit corrosion. numerous reviews contain present cutting-edge synthesis of electroactive polymers, and information aiding the prevention of corrosion in a variety of media are mentioned. moreover, new thoughts for measuring the onset of corrosion are offered.
Chapters during this quantity signify a huge variety of latest electroactive fabrics utilized in corrosion prevention and methods used to degree corrosion. either fabrics scientists and engineers will locate this e-book valuable for realizing and fighting corrosion. possible choices to standard barrier coatings used to avoid or retard corrosion also are mentioned. even though formerly released books have eager about natural and inorganic barrier coatings to avoid corrosion, this publication focuses completely on electroactive polymers and their functionality in retarding corrosion. Electroactive polymers symbolize a brand new, environmentally pleasant method of corrosion prevention.

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Similar observations, however with a composition not identical with polyaniline, had previously been made by Mengoli et al . Both authors favoured the conclusion, that PAni, if electro-deposited on pre-passivated steel, was capable of maintaining the passive state. ; ACS Symposium Series; American Chemical Society: Washington, DC, 2003. ch003 36 dispersions of polyaniline only some years before. It was completely unknown, if a PAni dispersion coating would have any effect. If yes, what would the effect be based on, and if not, how to make it an anti-corrosion coating.

Photographs were taken of the samples before exposure to the above environments as well as throughout the testing. In some cases, the tests were carried out for twelve weeks. Control samples of mild steel coated solely with the epoxy coating were tested to establish a baseline of the corrosion resistance of the conductive polymer-coated samples. The Ciba Geigy epoxy material was chosen because of its use in power plants for coating interior surfaces of industrial effluent stacks emitting sulfur dioxide.

0 -I 250 1 450 1 350 550 h— ι 750 Figure 4. ; ACS Symposium Series; American Chemical Society: Washington, DC, 2003. 2 τ wavelength [nm] 650 850 1050 Figure 5. 1 M pTS b) measured in 1 M NaCl (Reproduced with permission from reference 24) Continued on next page. ; ACS Symposium Series; American Chemical Society: Washington, DC, 2003. 250 450 850 Figure 5. Continued. ; ACS Symposium Series; American Chemical Society: Washington, DC, 2003. 2 wavelength [nm] 650 850 Continued on next page. Figure 6.

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