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Colloidal dispersions of polyindole |
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| Authors: | G?Rajasudha D?Rajeswari B?Lavanya |
| Institution: | (1) Department of Materials Science, Madurai Kamaraj University, 625 021 Madurai, Tamil Nadu, India;(2) Department of Physics and Astrophysics, University of Delhi, 110 007 Delhi, India;(3) USIC, University of Delhi, 110 007 Delhi, India |
| Abstract: | Polyindole dispersions consisting of 20–30-nm-sized nanoparticles are prepared by chemical oxidation with ferric chloride using sodium dodecyl sulphate, poly(vinyl alcohol) and poly(vinyl acetate) as steric stabilizers. Pure acetonitrile and acetonitrile–water mixtures are used as solvents. The particle size depended on the concentrations of monomer and the steric stabilizer. The dispersions are characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform IR spectroscopy, thermal analysis and cyclic voltammetry techniques. |
| Keywords: | Conducting polymer Colloidal dispersion Polyindole Polymeric nanoparticles |
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