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Applied Biochemistry and Biotechnology

, Volume 96, Issue 1–3, pp 145–153 | Cite as

The role of molecular recognition in charge transport properties of doped polyaniline

  • A. K. Mukherjee
  • Reghu Menon
Article

Abstract

Molecular recognition plays a significant role in the counterion-induced processibility, morphological features, and physical properties of doped polyaniline (PANI). The interaction of the counterion and solvent controls the chain conformation and, as a result, the formation of extended and localized electronic states; hence, it holds the key for tuning a wide range of electrical and optical properties of doped PANI. The combined effects of counterion, solvent, and processing conditions tune the metal-insulator transition, temperature dependence of conductivity, magnetoresistance, and so forth in doped PANI. The typical examples are shown in the case of PANI doped by camphor sulfonic acid, 2-acrylamido-2-methyl-1-propane sulfonic acid, and dodecylbenzoyl sulfonic acid.

Index Entries

Molecular recognition polyaniline electrical conductivity magnetoresistance 

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Copyright information

© Humana Press Inc. 2001

Authors and Affiliations

  1. 1.Department of PhysicsIndian Institute of ScienceBangaloreIndia

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