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    • Studies on biphenyl disulphonic acid doped polyanilines: Synthesis, characterization and electrochemistry

      Chepuri R K Rao R Muthukannan M Vijayan

      Volume 35 Issue 3 June 2012 pp 405-414

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/035/03/0405-0414

    • Keywords

       

      Polyaniline; processability; spacer group; sulphonic acid; electrochemical; conductivity.

    • Abstract

       

      In this article, we report on the results obtained for the efforts we made to bring processability to the conducting polyaniline and substituted polyanilines by designing and synthesizing a new disulphonic acid with a biphenyl moiety as spacer group, viz. 4,4'-biphenyldisulphonic acid (BPSA). When doped, the disulphonic acid acts as a spacer group between the polyaniline chains and facilitates increase in solubility and conductivity. The spacing effect is maximized when BPSA is used as doping agent in in situ polymerization reactions. The conductivity of polyaniline doped by BPSA is 4 S/cm and for the substituted polyanilines it ranged from 2 × 10-5 to 8 × 10-4 S/cm.

    • Author Affiliations

       

      Chepuri R K Rao1 2 R Muthukannan1 M Vijayan1

      1. Functional Materials Division, Central Electrochemical Research Institute, Karaikudi 630 006, India
      2. Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India

    • Dates

       
      Published
      June 2012
      Manuscript received
      15 June 2011
      Manuscript revised
      29 October 2011

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