International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Open Access | Fully Refereed | Peer Reviewed

ISSN: 2319-7064




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M.Tech / M.E / PhD Thesis | Mechanical Engineering | India | Volume 3 Issue 9, September 2014


Characterization, AC Conductivity and Dielectric behaviour of Chemically Synthesized Poly Meta-Aminophenol

Dr. Shantharaja M., Srinivas K. R.


Abstract: Substituted polyaniline, poly (m-aminophenol) was synthesized by oxidative chemical polymerization method using ammonium persulfate as an oxidant in an acidic medium at room temperature. The synthesized polymer was characterized by GPC, UV-VIS-NIR, FT-IR, 1H NMR, XRD, SEM and TGA-DTA. The AC electrical conductivity and dielectric behavior was investigated using complex impedance spectroscopy over the frequency range of 20Hz106Hz and in the temperature range of 303383K. AC conductivity is found to increases with increase of temperatures. In the entire range, the universal power law ac=AS holds good. The polymer displays a decrease in frequency exponent S value in the entire temperature range of study and hence follow Correlated Barrier Hopping (CBH) conduction mechanisms. Both dielectric constant and dielectric loss increases with the decrease of frequency exhibiting strong interfacial polarization at low frequency. At higher frequencies PMAP exhibits almost zero dielectric loss which suggests that this polymer is lossless material at frequencies beyond 105Hz. Complex electric modulus and dissipation factor exhibits two relaxation peaks, indicating two-phase structure as indicated by a bimodal distribution of relaxation process.


Keywords: Riveted panel, Integral panel, Stress concentration factor and Stress intensity factor


Edition: Volume 3 Issue 9, September 2014,


Pages: 426 - 431


How to Cite this Article?

Dr. Shantharaja M., Srinivas K. R., "Characterization, AC Conductivity and Dielectric behaviour of Chemically Synthesized Poly Meta-Aminophenol", International Journal of Science and Research (IJSR), https://www.ijsr.net/get_abstract.php?paper_id=SEP1462, Volume 3 Issue 9, September 2014, 426 - 431

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Downloads: 120 | Weekly Hits: ⮙1 | Monthly Hits: ⮙1

Research Paper | Chemistry | India | Volume 3 Issue 9, September 2014


Characterization, AC Conductivity and Dielectric behaviour of Chemically Synthesized Poly Meta-Aminophenol

Dr. Shantharaja M., Srinivas K. R.


Abstract: Substituted polyaniline, poly (m-aminophenol) was synthesized by oxidative chemical polymerization method using ammonium persulfate as an oxidant in an acidic medium at room temperature. The synthesized polymer was characterized by GPC, UV-VIS-NIR, FT-IR, 1H NMR, XRD, SEM and TGA-DTA. The AC electrical conductivity and dielectric behavior was investigated using complex impedance spectroscopy over the frequency range of 20Hz106Hz and in the temperature range of 303383K. AC conductivity is found to increases with increase of temperatures. In the entire range, the universal power law ac=AS holds good. The polymer displays a decrease in frequency exponent S value in the entire temperature range of study and hence follow Correlated Barrier Hopping (CBH) conduction mechanisms. Both dielectric constant and dielectric loss increases with the decrease of frequency exhibiting strong interfacial polarization at low frequency. At higher frequencies PMAP exhibits almost zero dielectric loss which suggests that this polymer is lossless material at frequencies beyond 105Hz. Complex electric modulus and dissipation factor exhibits two relaxation peaks, indicating two-phase structure as indicated by a bimodal distribution of relaxation process.


Keywords: Riveted panel, Integral panel, Stress concentration factor and Stress intensity factor


Edition: Volume 3 Issue 9, September 2014,


Pages: 378 - 384


How to Cite this Article?

Dr. Shantharaja M., Srinivas K. R., "Characterization, AC Conductivity and Dielectric behaviour of Chemically Synthesized Poly Meta-Aminophenol", International Journal of Science and Research (IJSR), https://www.ijsr.net/get_abstract.php?paper_id=SEP1462, Volume 3 Issue 9, September 2014, 378 - 384

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