Thermal characterization of doped polyaniline and its composites with CoPc

Sajan D. George, S. Saravanan, M. R. Anantharaman, S. Venkatachalam, P. Radhakrishnan, V. P.N. Nampoori, C. P.G. Vallabhan

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Thermal diffusivity of the composites of camphor sulphonic acid (CSA) doped polyaniline (PANI) and its composites with cobalt phthalocyanine (CoPc) has been measured using open cell photoacoustic technique. Analysis of the data shows that the effective thermal diffusivity value can be tuned by varying the relative volume fraction of the constituents. It is seen that polaron assisted heat transfer mechanism is dominant in CSA doped PANI and these composites exhibit a thermal diffusivity value which is intermediate to that of CSA doped PANI and CoPc. The results obtained are correlated with the electrical conductivity and hardness measurements carried out on the samples.

Original languageEnglish
Article number235201
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number23
DOIs
Publication statusPublished - 01-06-2004

Fingerprint

Camphor
camphor
Sulfonic Acids
Thermal diffusivity
sulfonic acid
thermal diffusivity
Polyaniline
Cobalt
cobalt
composite materials
Acids
Composite materials
Gene Conversion
Photoacoustic effect
Volume fraction
hardness
Hardness
heat transfer
Heat transfer
electrical resistivity

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

George, S. D., Saravanan, S., Anantharaman, M. R., Venkatachalam, S., Radhakrishnan, P., Nampoori, V. P. N., & Vallabhan, C. P. G. (2004). Thermal characterization of doped polyaniline and its composites with CoPc. Physical Review B - Condensed Matter and Materials Physics, 69(23), [235201]. https://doi.org/10.1103/PhysRevB.69.235201
George, Sajan D. ; Saravanan, S. ; Anantharaman, M. R. ; Venkatachalam, S. ; Radhakrishnan, P. ; Nampoori, V. P.N. ; Vallabhan, C. P.G. / Thermal characterization of doped polyaniline and its composites with CoPc. In: Physical Review B - Condensed Matter and Materials Physics. 2004 ; Vol. 69, No. 23.
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George, SD, Saravanan, S, Anantharaman, MR, Venkatachalam, S, Radhakrishnan, P, Nampoori, VPN & Vallabhan, CPG 2004, 'Thermal characterization of doped polyaniline and its composites with CoPc', Physical Review B - Condensed Matter and Materials Physics, vol. 69, no. 23, 235201. https://doi.org/10.1103/PhysRevB.69.235201

Thermal characterization of doped polyaniline and its composites with CoPc. / George, Sajan D.; Saravanan, S.; Anantharaman, M. R.; Venkatachalam, S.; Radhakrishnan, P.; Nampoori, V. P.N.; Vallabhan, C. P.G.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 69, No. 23, 235201, 01.06.2004.

Research output: Contribution to journalArticle

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AU - George, Sajan D.

AU - Saravanan, S.

AU - Anantharaman, M. R.

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AU - Radhakrishnan, P.

AU - Nampoori, V. P.N.

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AB - Thermal diffusivity of the composites of camphor sulphonic acid (CSA) doped polyaniline (PANI) and its composites with cobalt phthalocyanine (CoPc) has been measured using open cell photoacoustic technique. Analysis of the data shows that the effective thermal diffusivity value can be tuned by varying the relative volume fraction of the constituents. It is seen that polaron assisted heat transfer mechanism is dominant in CSA doped PANI and these composites exhibit a thermal diffusivity value which is intermediate to that of CSA doped PANI and CoPc. The results obtained are correlated with the electrical conductivity and hardness measurements carried out on the samples.

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