Volume 1, Issue 4, November 2016, Page: 37-42
Synthesis Time and Temperature Effect on Polyaniline Morphology and Conductivity
Palash Chandra Maity, Department of Materials Science and Metallurgical Engineering, Indian Institute of Technology Hyderabad, India
Mudrika Khandelwal, Department of Materials Science and Metallurgical Engineering, Indian Institute of Technology Hyderabad, India
Received: Sep. 2, 2016;       Accepted: Sep. 26, 2016;       Published: Nov. 1, 2016
DOI: 10.11648/j.ajmsp.20160104.11      View  3994      Downloads  253
This paper studies the effect of time and temperature of polymerisation on morphology and conductivity of polyaniline which is produced by oxidative polymerisation. It has been reported that with decrease in temperature and increase in polymerisation duration, the yield and particle size increases. The polyaniline particles are rod-like at the onset of polymerisation and also at low polymerisation temperature. The conductivity has been determined by four-point measurement with incorporation of correction factor. It was found that the electrical conductivity varies from below 0.5 S/cm to over 11 S/cm with variation in duration and temperature of polymerization. Conductivity is proposed to be dependent on the particle size as conductivity increases with decrease in polymerisation temperature and increase in polymerisation duration, similar to the trend observed for particle size. This may be indicative of equal probability of inter- chain and intra-chain charge transport.
Polyaniline, Four-Point Conductivity, Morphology, Time Temperature Effect
To cite this article
Palash Chandra Maity, Mudrika Khandelwal, Synthesis Time and Temperature Effect on Polyaniline Morphology and Conductivity, American Journal of Materials Synthesis and Processing. Vol. 1, No. 4, 2016, pp. 37-42. doi: 10.11648/j.ajmsp.20160104.11
Copyright © 2016 Authors retain the copyright of this article.
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