Жарым-икемді таяқша полимер: Полианилиннің зерттелуі мен қолданылуы

Conducting semi flexible rod polymer

Polyaniline (PANI) is a conducting polymer and organic semiconductor of the semi flexible rod polymer family. The compound has been of interest since the 1980s because of its electrical conductivity and mechanical properties. Polyaniline is one of the most studied conducting polymers.

The synthesis of polyaniline nanostructures is facile. Using surfactant dopants, the polyaniline can be made dispersible and hence useful for practical applications. Bulk synthesis of polyaniline nanofibers has been researched extensively. A multi stage model for the formation of emeraldine base is proposed. In the first stage of the reaction the pernigraniline PS salt oxidation state is formed. In the second stage pernigraniline is reduced to the emeraldine salt as aniline monomer gets oxidized to the radical cation. Polyaniline is typically produced in the form of long chain polymer aggregates, surfactant (or dopant) stabilized nanoparticle dispersions, or stabilizer free nanofiber dispersions depending on the supplier and synthetic route. Surfactant or dopant stabilized polyaniline dispersions have been available for commercial sale since the late 1990s. Polyaniline and its derivatives are also used as the precursor for the production of N doped carbon materials through high temperature heat treatment. Printed emeraldine polyaniline based sensors have also gained much attention for widespread applications where devices are typically fabricated via screen, inkjet or aerosol jet printing.