How do you synthesize polyaniline?

How do you synthesize polyaniline?

Polyaniline (PANI) synthesis. PANI was synthesized by oxidative polymerization using 0.1 M anilinium hydrochloride (ANHC) in 1 M HCl and ammonium peroxydisulfate (APS) as oxidant agent (equimolar to aniline). The polymerization reaction was made in a cooled (0 °C–0.3 °C) and stirred reactor.

What is the chemical formula of polyaniline?

Emeraldine

How do you synthesize polypyrrole?

Polypyrrole (PPy) was synthesized by chemical oxidative polymerization technique using pyrrole monomer and different oxidants. The chemical polymerization was carried out in a beaker with 100 ml of distilled water by mixing different molar ratios of pyrrole monomer, an oxidant, and a surfactant.

How do you make polyaniline from aniline?

Polyaniline is best synthesized using aniline monomer in aqueous medium in the presence of DBSA, PTSA, camphor sulphonic acid and other organic acids at 0oC -2oC by using oxidant like ammonium per sulphate. Care has to be taken to add APS drop-wise otherwise oligomers will be formed.

Why aniline used for preparation of polyaniline is distilled first?

Aniline containing dissolved water is obtained from distillate by decantation since it forms sepaprate phase. For polymerization, you do not need to dry so obtained aniline, because polymerization is carried out in aqueous environment.

Is polyaniline a semiconductor?

3,4 Polyaniline (PANI) is a p-type semiconductor. 5 The fabrication of polyaniline-based microelectronic devices such as diodes and transistors has been reported.

What are conducting polymers in chemistry?

Conductive polymers or, more precisely, intrinsically conducting polymers (ICPs) are organic polymers that conduct electricity. Such compounds may have metallic conductivity or can be semiconductors. The biggest advantage of conductive polymers is their processability, mainly by dispersion.

What is polyaniline conducting polymer?

Polyanilines are a class of conducting polymers which can exist in three different oxidation states, namely the completely reduced leucoemeraldine base, the completely oxidized pernigraniline base, and the emeraldine base consisting of alternating oxidized and reduced repeat units in its structure.