Radiolytic Synthesis of Polyaniline Nanofibers:  A New Templateless Pathway

Abstract

A templateless method for the synthesis of polyaniline nanofibers and nanorods is reported which is based on gamma irradiation of aqueous solutions of aniline in the presence of an initiator.

One‐Dimensional Conducting Polymer Nanostructures: Bulk Synthesis and Applications

“…[91,92] In addition to using oligomers, the growth of conducting polymer nanofibers can also be assisted by sonochemical or radiolytic synthesis. [93,94] For example, by subjecting the polymerization bath of a conventional PAni synthesis to ultrasonic irradiation, nanofibers of PAni are formed instead of the usually observed micrometer-sized agglomerates.…”

Recent progress on nanostructured conducting polymers and composites: synthesis, application and future aspects

“…This approach possesses some advantages over other methods such as, absence of foreign matter, polymerization at room temperature, reaction uniformly by γ-irradiation and easy control of reaction rate [6]. Pillalamarri et al [84] developed the radiolytic synthesis of PANI nanofibers (50-100 nm in diameter and 1-3 μm in length) and nanorods (250-500 nm in diameter and 5-10 μm in length) by γ-ray irradiated aqueous solutions of aniline in the presence of initiator. The obtained nanofibers can be extracted after washing cycles and the polymer can be doped with acids such as HCl, HClO 4 , etc.…”

Preparation and characterisation of PPy/NanoGs/Fe3O4conductive and magnetic nanocomposites

“…Among these conducting polymer composites [2,3], materials decorated with inorganic nanoparticles are of particular interest because of their new favourable properties, such as electrical conductivity [4], magnetic behaviour [5], catalytic effects [6], microwave absorption [7] and capacity for drug delivery. Polypyrrole (PPy), as a conductive base in the composites or nanocomposites, are used diffusely due to its easy preparation, higher conductivity, environmental stability to water and oxygen and other relevant properties in such application fields as the secondary battery [8], electro magnetic interference (EMI) shielding [9], chemical and biochemical sensors [10] and conducting composite materials [11].…”

“…Magnetite (Fe 3 O 4 ) is the most widely studied super-paramagnetic nanoparticles (NPs), which offers a large variety of applications, such as information storage [2,13], colour imaging [3] and medical diagnosis [5,14]. However, naked Fe 3 O 4 NPs are very sensitive to oxidation for their high chemical reactivities and prone to aggregate for their large ratio of surface area to volume and thus result in poor magnetism and dispersibility [15].…”

“…Several groups have reported their work on preparing polymer/graphite nanocomposites, but researches on the conducting polymer/magnetic nanomaterials/graphite nanosheets nanocomposites were rare. In this study, we reported on the preparation of PPy/NanoGs/Fe 3 …”