Organic Carbonates as Solvents in Synthesis and Catalysis

Nouveau Traité de Chimie Minérale.

Conjugated polymers have a number of interesting properties that can be exploited in microfabricated sensors and actuators. For example, polypyrrole is a conjugated polymer that can change volume to deliver significant stresses and strains. These materials can be patterned using conventional microfabrication techniques. The procedures for doing this are described in this paper, focusing on the microfabrication of polypyrrole microactuators. In addition, other methods for the deposition and patterning of conjugated polymers are reviewed. A special technique for releasing actuators, differential adhesion, is also detailed.

https://iopscience.iop.org/article/10.1088/0960-1317/9/1/001/pdf

Microfabrication of PPy microactuators and other conjugated polymer devices

Conducting polymers (CPs) such as polyaniline (PANI), polypyrrole (PPy), and polythiophene (PTh) are used for the corrosion protection of metals and metal alloys. Several groups have reported diverse views about the corrosion protection by CPs and hence various mechanisms have been suggested to explain anticorrosion properties of CPs. These include anodic protection, controlled inhibitor release as well as barrier protection mechanisms. Different approaches have been developed for the use of CPs in protective coatings (dopants, composites, blends). A judicious choice of synthesis parameters leads to an improvement in the anticorrosion properties of the coatings prepared by CPs for metals and their alloys. This article is prepared as a review of the application of CPs for corrosion protection of metal alloys.

Conducting polymers for corrosion protection: a review

Corrosion protection by multilayered conducting polymer coatings

Electrosynthesis of strongly adherent polypyrrole coatings on iron and mild steel in aqueous media

Electropolymerization of pyrrole on iron electrodes: Influence of solvent and electrolyte on the nature of the deposits

Electrodeposition of protective polyaniline films on mild steel

Characterization of polyaniline films electrodeposited on mild steel in aqueous p-toluenesulfonic acid solution

Very adherent modified polypyrrole (PPy)m films have been electrosynthesized on oxidizable metals such as mild steel (MS) and zincated steel (Zn) by electrochemical oxidation of pyrrole (Py) on the substrate In the case of mild steel, the adherence of the coating is maintained in both the oxidized and reduced states of the polymer, allowing the cataphoretic print technique, which is particularly useful in the automotive industry, to be used When submitted to the salt spray test, the bilayer system (MS/(PPy)m/cataphoretic paint) appears to be as good as the reference system where the PPy layer has been replaced by a phosphating layer

S. Aeiyach

Papers

Electrosynthesis of strongly adherent polypyrrole coatings on iron and mild steel in aqueous media

Electropolymerization of pyrrole on iron electrodes: Influence of solvent and electrolyte on the nature of the deposits

Electrodeposition of protective polyaniline films on mild steel

Characterization of polyaniline films electrodeposited on mild steel in aqueous p-toluenesulfonic acid solution

Appraisal of the polypyrrole/cataphoretic paint bilayer system as a protective coating for metals