Vapour recognition using organic films and artificial neural networks

Pattern Recognition and Multicomponent Analysis

“…An investigation into the design of sensing elements consisting of a dip-coated polyaniline film, an evaporated polyaniline film, and a Langmuir-Blodgett film of vanadium porphyrin (conductivity measurements) was undertaken by Barker et al [63]. A three-layer BPN could be successfully used to recognize two of the four vapors (water, propanol, ethyl acetate and acetone) tested.…”

Effect of structural factors on the physicochemical properties of functionalized polyanilines

“…Electrically conductive PANI derivatives became popular as competent measuring materials for a variety of organic vapors, 155 hazardous gases, 156 and humidity. 157 The development of a new generation of sensor devices is mainly associated with two electrically conductive polymers, namely, PANI and polypyrrole. Polymers serve as the detecting component in sensors since they are sensitive to chemical reagents and give a consistent response to them.…”

“…The experimental characteristics of PANI-based devices can be improved by incorporating functional groups at the PANI's aromatic ring. 157 Optical sensors for pH determination based on the following derivatives have been created and are operative: poly-2chloroaniline, poly-2-bromoaniline, poly-3-chloroaniline, polyortho-toluidine, poly-diphenylamine. [42][43][44]81,159 pH measurements are based on recording the changes in the optical properties of the corresponding material caused by pH variation.…”

Synthesis, structure characterization, and gas sensitive properties of a copolymer of aniline with phenol

“…So far, a considerable effort and a great deal of progress have been made in the development of various gas sensors, i.e. volatile organic compounds (VOCs), hazardous gases,1 humidity,2, 3 and warfare agent stimulants,4 with conducting polymers. This application is based on the properties of conductive polymers, including responding reversibly upon exposure to gases, easy processability, functioning at room temperature, low power consumption, and low poisoning effects 5–12…”