Abstract
The study reports some preliminary investigations on the template free synthesis of ascantlyinvestigated polyaniline (PANI) derivative—poly (1-naphthylamine) (PNA) by template free method in presence as well as absence of hydrochloric acid (HCl) (dopant), using ferric chloride as oxidant. The polymerization was carried out in alcoholic medium. Polymerization of 1-naphthylamine (NPA) was confirmed by the FT-IR as well as UV–visible studies. The morphology and size of PNA particles was strongly influenced by the presence and absence of acid which was confirmed by transmission electron microscopy (TEM) studies.
Highlights
Scientific and technological interest in studying nanomaterials has spurred to develop conducting polymeric nanostructures, using reliable and scalable synthetic methods to provide better performance of these materials in the established areas of corrosion, sensors, batteries, and EMI shielding [1–4]
Shaffie et al [7] carried out the chemical oxidative polymerization of poly (1-naphthylamine) using potassium persulphate, and the conductivity of the polymer was reported to be in the range of *0.83 Scm-1
This study reports some preliminary investigations on the template free synthesis of nanostructured PNA with a view to obtain an agglomerate free nanostructured conducting polymer
Summary
Scientific and technological interest in studying nanomaterials has spurred to develop conducting polymeric nanostructures, using reliable and scalable synthetic methods to provide better performance of these materials in the established areas of corrosion, sensors, batteries, and EMI shielding [1–4]. Shaffie et al [7] carried out the chemical oxidative polymerization of poly (1-naphthylamine) using potassium persulphate, and the conductivity of the polymer was reported to be in the range of *0.83 Scm-1. This study reports some preliminary investigations on the template free synthesis of nanostructured PNA with a view to obtain an agglomerate free nanostructured conducting polymer. The purple-black-coloured glassy phase turned into suspension after holding for 30 min at room temperature It was washed thoroughly with distilled water and methyl alcohol to remove oligomers, metal ions and other impurities. Similar procedure was adopted for the synthesis of PNA in ethanol medium without HCl. FT-IR spectra of the powdered polymers were taken in the form of KBr pellets on spectrometer model Perkin Elmer 1750 FT-IR spectrophotometer (Perkin Elmer Cetus Instruments, Norwalk, CT, USA). The error in resistance measurements under these conditions was less than 2%
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