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Volume 6 Research & Reviews: Journal of Material Sciences MatSciEngg 2018
October 15-17, 2018
October 15-17, 2018 Helsinki, Finland
31st Materials Science and Engineering
Conference: Advancement & Innovations
Preparation of conductive polyaniline/metacryloyl modified-poly (vinyl alcohol) thin films and investigation
of their usability in the reduction of morphologically different Ag particles
Meryem Kalkan Erdogan, Meral Karakisla and Mehmet Sacak
Ankara University, Turkey
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. The as-prepared films were used as soft templates in the reduction of Ag particles, after subjecting the
films to the ammonia de-doping and different sulfonic acids re-doping processes. The changing morphology, particle size and
decoration intensity of the Ag particles were also monitored with SEM technique.
Biography
Meryem Kalkan Erdogan is a Research Assistant in the Department of Chemistry, Faculty of Science, Ankara University. She has completed her MSc degree in
2011 and PhD degree in 2017, respectively. Her research interests are preparation of electrically conductive composites from conductive polymers with various
materials such as textiles, developing materials for electromagnetic interference shielding and surface properties of noble metal nanoparticles.
Meryem Kalkan Erdogan et al., Res. Rev. J Mat. Sci. 2018, Volume 6
DOI: 10.4172/2321-6212-C5-026