Accession Number : ADA259662


Title :   Comparison of Different Synthetic Routes for Sulfonation of Polyaniline


Descriptive Note : Technical rept. 31 May 1991-30 Jun 1992


Corporate Author : PENNSYLVANIA UNIV PHILADELPHIA DEPT OF CHEMISTRY


Personal Author(s) : Yue, J ; Gordon, G ; Epstein, A J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259662.pdf


Report Date : 29 Jun 1992


Pagination or Media Count : 35


Abstract : Polyanilines containing sulfonic groups covalently bonded to the back were synthesized from parent polyaniline via sulfonation of the polymer utilizing differing sulfonation agents and differing means. The sulfonation conditions were studied as a function of several parameters including sulfonation time, starting forms of the precursor polymer, presence of oxidizer, ((NH4)2S2O8), and temperature. The sulfonated polyanilines were characterized by FTIR, elemental analyses, DC conductivity and electrochemical methods. It was found that using fuming sulfuric acid as the sulfonation agent gave both higher conductivity and higher sulfonation level for sulfonated polyaniline than implementation of other sulfonation agents and means.


Descriptors :   *SYNTHESIS , *POLYMERS , *ANILINES , CONDUCTIVITY , COVALENT BONDS , SULFURIC ACID , COMPARISON , PRECURSORS , PARAMETERS


Subject Categories : Organic Chemistry
      Physical Chemistry
      Polymer Chemistry
      Electricity and Magnetism


Distribution Statement : APPROVED FOR PUBLIC RELEASE