The role of molecular recognition in charge transport properties of doped polyaniline.
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.
Mukherjee
A K
AK
Department of Physics, Indian Institute of Science, Bangalore.
Menon
R
R
D000814:Aniline Compounds / Q000737:chemistry*; D001709:Biotechnology; D002164:Camphor / Q000737:chemistry; D004553:Electric Conductivity; D004563:Electrochemistry; D004574:Electromagnetic Fields; D008956:Models, Chemical; D013451:Sulfonic Acids / Q000737:chemistry; D013696:Temperature
D000814:Aniline Compounds; D013451:Sulfonic Acids; C416807:polyaniline; D002164:Camphor