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    • Size variation of polyaniline nanoparticles dispersed in polyvinyl alcohol matrix

      J Bhadra D Sarkar

      Volume 33 Issue 5 October 2010 pp 519-523

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/033/05/0519-0523

    • Keywords

       

      Polymers; nanostructures; composite materials; electrical conductivity.

    • Abstract

       

      We report the preparation of polyaniline (PANI) nanoparticles dispersed in polyvinyl alcohol (PVA) matrix. From SEM picture it is seen that the particle sizes vary from 100–20 nm. Also with increase in PVA content the stability of dispersion is found to increase. Apart from SEM, spin cast films of PANI in PVA are also characterized through XRD and FTIR. XRD shows increase in crystallinity with PVA content and FTIR gives evidence of crosslinking between PANI and PVA molecules. In plane electrical conductivity (in the range of 102 Scm-1) and the exponent of nonlinear 𝐼–𝑉 are found to decrease with increase of PVA content. There is a good correlation between SEM, XRD, FTIR and electrical properties.

    • Author Affiliations

       

      J Bhadra1 D Sarkar1

      1. Department of Physics, Gauhati University, Guwahati 781 014, India

    • Dates

       
      Published
      October 2010
      Manuscript received
      8 April 2009
      Manuscript revised
      19 April 2010

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