Water-Based Polyaniline and Its Complex

With increasing environmental concerns, the development of water-based ICPs and their complex becomes a necessity. Extensive research has been conducted in this field, especially for polyaniline. Generally, water-based polyaniline can be obtained by three methods introduction of water-soluble substituent to backbone to gain water-soluble polyaniline [158, 159], emulsion polymerization to obtain water-dispersed polyaniline [160-163], and the cormterion-induced processability of doped polyaniline using a hydrophilic protonic acid [164, 165). The first two methods have a common problem of purification and efficiency. In contrast, the pure polyaniline is used in counterion-induced processability of doped polyaniline. The purification and efficiency problems do not exist with this method, so it is the most promising way to obtain water-based polyaniline. 

The polyaniline/silica hybrids show distinctly improvable water resistance, but high-quality polyaniline hybrid films can hardly be made because of the inherent 

Conducting polymers are usually infusible and insoluble, which results in difficulty in processing of these conductive materials even when blended with other polymer 

1 Jones, D.A. (19%) Principles and Prevention of Corrosion, Prentice Hall, New York. 

2 Koch, G.H., Brongers, P.H., Thompson, N.G., Vrrmani, Y.P., and Payer, J.H. (2002) Corrosion Costs and Prevention Strat ies in the United States. Publication 

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