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Papers by Nayana Chandrakanthi

Research paper thumbnail of Preparation and characterization of fully oxidized form of polyaniline

Polymer Bulletin, Oct 27, 2000

Research paper thumbnail of Preparation and characterization of fully oxidized form of polyaniline

Polymer Bulletin, 2000

The oxidation state of polyaniline (PANI) can be varied from the fully reduced leucoemeraldine ba... more The oxidation state of polyaniline (PANI) can be varied from the fully reduced leucoemeraldine base (LEB) to the half oxidized emeraldine base (EB) and to the fully oxidized form pernigraniline base (PNB). In this work, the synthesis and properties of the highest oxidation state of polyaniline, pernigraniline, in the base as well as the corresponding salt form are discussed.

Research paper thumbnail of Thermal stability of polyaniline

Polymer Bulletin, 2000

Among conducting polymers with metallic characteristics, polyaniline (PANI) is claimed to have on... more Among conducting polymers with metallic characteristics, polyaniline (PANI) is claimed to have one of the highest environmental stability. From an industrial point of view it would be useful to be able to thermally process this material into useful products using conventional techniques such as extrusion, stretching, rolling, etc., which generally are carried out at elevated temperatures. Somewhat surprisingly, relatively few studies have addressed the thermal stability of PANI, in particular that of the non-protonated emeraldine base form. Therefore, a study of the thermal properties was performed to examine the thermal stability of this material and to identify the optimum processing and maximum application temperatures.

Research paper thumbnail of Preparation of nanocomposites of polyaniline and inorganic semiconductors

Journal of Materials Chemistry, 2001

... Godovskya, Andrei E. Varfolomeeva, David F. Zaretskya, RL Nayana Chandrakanthib, Andreas Künd... more ... Godovskya, Andrei E. Varfolomeeva, David F. Zaretskya, RL Nayana Chandrakanthib, Andreas Kündigc, Christoph Wederc and Walter ... Nanocomposites of polyaniline (PANI) and the semiconducting metal sulfides CdS and Cu 2 S were prepared from the respective metal ...

Research paper thumbnail of Preparation of nanocomposites of polyaniline and inorganic semiconductors

Journal of Materials …, 2001

... Godovskya, Andrei E. Varfolomeeva, David F. Zaretskya, RL Nayana Chandrakanthib, Andreas Künd... more ... Godovskya, Andrei E. Varfolomeeva, David F. Zaretskya, RL Nayana Chandrakanthib, Andreas Kündigc, Christoph Wederc and Walter ... Nanocomposites of polyaniline (PANI) and the semiconducting metal sulfides CdS and Cu 2 S were prepared from the respective metal ...

Research paper thumbnail of Preparation and characterization of fully oxidized form of polyaniline

Polymer Bulletin, Oct 27, 2000

Research paper thumbnail of Preparation and characterization of fully oxidized form of polyaniline

Polymer Bulletin, 2000

The oxidation state of polyaniline (PANI) can be varied from the fully reduced leucoemeraldine ba... more The oxidation state of polyaniline (PANI) can be varied from the fully reduced leucoemeraldine base (LEB) to the half oxidized emeraldine base (EB) and to the fully oxidized form pernigraniline base (PNB). In this work, the synthesis and properties of the highest oxidation state of polyaniline, pernigraniline, in the base as well as the corresponding salt form are discussed.

Research paper thumbnail of Thermal stability of polyaniline

Polymer Bulletin, 2000

Among conducting polymers with metallic characteristics, polyaniline (PANI) is claimed to have on... more Among conducting polymers with metallic characteristics, polyaniline (PANI) is claimed to have one of the highest environmental stability. From an industrial point of view it would be useful to be able to thermally process this material into useful products using conventional techniques such as extrusion, stretching, rolling, etc., which generally are carried out at elevated temperatures. Somewhat surprisingly, relatively few studies have addressed the thermal stability of PANI, in particular that of the non-protonated emeraldine base form. Therefore, a study of the thermal properties was performed to examine the thermal stability of this material and to identify the optimum processing and maximum application temperatures.

Research paper thumbnail of Preparation of nanocomposites of polyaniline and inorganic semiconductors

Journal of Materials Chemistry, 2001

... Godovskya, Andrei E. Varfolomeeva, David F. Zaretskya, RL Nayana Chandrakanthib, Andreas Künd... more ... Godovskya, Andrei E. Varfolomeeva, David F. Zaretskya, RL Nayana Chandrakanthib, Andreas Kündigc, Christoph Wederc and Walter ... Nanocomposites of polyaniline (PANI) and the semiconducting metal sulfides CdS and Cu 2 S were prepared from the respective metal ...

Research paper thumbnail of Preparation of nanocomposites of polyaniline and inorganic semiconductors

Journal of Materials …, 2001

... Godovskya, Andrei E. Varfolomeeva, David F. Zaretskya, RL Nayana Chandrakanthib, Andreas Künd... more ... Godovskya, Andrei E. Varfolomeeva, David F. Zaretskya, RL Nayana Chandrakanthib, Andreas Kündigc, Christoph Wederc and Walter ... Nanocomposites of polyaniline (PANI) and the semiconducting metal sulfides CdS and Cu 2 S were prepared from the respective metal ...