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Preparation of Conductive Polyaniline/Metacryloyl Modified-Poly (Vinyl Alcohol) Thin Films and Investigation of their Usability in the Reduction of Morphologically Different Ag Particles | SciTechnol

Journal of Electrical Engineering and Electronic Technology.ISSN: 2325-9833

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Short Communication, J Electr Eng Electron Technol Vol: 10 Issue: 7

Preparation of Conductive Polyaniline/Metacryloyl Modified-Poly (Vinyl Alcohol) Thin Films and Investigation of their Usability in the Reduction of Morphologically Different Ag Particles

Abstract

One of the most electrically conductive conjugated polymers, polyaniline (PAni), has increasingly drawn the attention of the researchers due to its excellent tunable electrical properties and versatile functional groups such as amines and imines, which can form strong interactions such as H bonds with its composites. However, it’s processing penalties such as being brittle when it is subjected to pellet form, difficult solubility in environmentally friendly solvents such water limit its usability in potential application areas. For this reason, many attempts have been made in literature. Among them, preparation of its films using soft commercial polymers such as poly(vinyl alcohol) (PVA) is promising in terms of imparting desired properties of the polymer such as high process ability, flexibility and hydrophility to the PAni, without losing its properties. In this work, we prepared a conductive composite film, from PAni and a methacryloyl groups introduced PVA polymer in a few facile steps. First, the PVA polymer was modified with glycidyl methacrylate in the presence of N,N,N,N-tetramethylethylenediamine (TEMED) as catalyst at 60 °C in DMSO and then casted as films. Second, aniline was polymerized on PVA-gma film surface with APS oxidant in 1M HCl. The effect of some conditions such as concentration of PVA-gma polymer (g/100 mL) and concentration of aniline (M) were investigated on PAni (%) content and surface resistivity of the film. It was observed that the surface resistivity of the thin and almost transparent PAni/ PVA-gma films (containing 17.5% of PAni) reached to 1000 Ω/cm2. The composite films were characterized with various techniques.

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