Electrically conducting polyaniline: method for emulsion polymerization
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United States of America Patent
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Sep 18, 2001
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N/A
app pub date -
Feb 28, 1997
filing date -
Aug 7, 1992
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Abstract
A method of emulsion polymerization of aniline or substituted anilines for making substituted or unsubstituted homopolymers and co-polymers of aniline. The method includes formation of an emulsion of aniline monomers, polar solvent, non-polar or weakly polar solvent and functionalized protonic acid, which is selected for its ability to perform two functions: acting as a surfactant and acting as a protonating agent (dopant) in producing an electrically conducting polymer. Then, an oxidant is added to polymerize the ingredients of the emulsion. This method provides polyaniline particles of highly crystalline and oriented morphologies of controlled aspect ratios.
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