Structures and properties of the soluble polyanilines, N-alkylated emeraldine bases

The N-alkylated emeraldine bases are synthesized by incorporation of flexible alkyl chains onto the polyaniline through an N-alkylation method with the emeraldine base

Gue-Wuu Hwang; Kuan-Ying Wu; Mu-Yi Hua; Hsun-Tsing Lee; Show-An Chen

2002

Scholarcy highlights

  • The N-alkylated emeraldine bases are synthesized by incorporation of flexible alkyl chains onto the polyaniline through an N-alkylation method with the emeraldine base
  • When carbon number of the alkyl side chain is six or more, the polymers can be dissolved in common organic solvents even in the presence of a protonic organic acid as dopant, such as dodecylbenzene sulfonic acid and camphor sulfonic acid, and free-standing films can be obtained by casting from the solutions
  • DDBSA-doped N-alkylated emeraldine salt films cast from polymer solutions in dichloromethane in the presence of the acid dopant have maximum conductivities in the range 10−2– 10−4 S/cm, being two to three orders of magnitude higher than those of the reported HClO4-doped poly(N-alkylaniline)s

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