Green Preparation of Sulfonated Polystyrene/Polyaniline/Silver Composites with Enhanced Anticorrosive Properties

Abstract

Sulfonated polystyrene/polyaniline/silver (SPS/PANI/Ag) composites with enhanced anticorrosive properties have been successfully prepared by using SPS microspheres as substrates and utilizing polyvinylpyrrolidone (PVP) as reducing agent and stabilizing agent. Our method is an environmentally friendly method because of the absence of any toxic reagents in the whole process. Fourier transform infrared Spectrum (FTIR), field emission scanning electron microscopy (FESEM), and energy disperse spectroscopy (EDX) results confirmed the formation of pure PANI, SPS/PANI composites, and SPS/PANI/Ag composites. Powder X-ray diffraction (XRD) patterns indicate that the obtained Ag nanoparticles are crystalline. The anticorrosive studies indicate that both SPS/PANI composites and SPS/PANI/Ag composites have enhanced anticorrosive properties in comparison to pure PANI in various corrosive environments.

Preparation of an Amperometric Glucose Biosensor on Polyaniline‐Coated Graphite

“…Similarly, the characteristic peaks at 1302 cm -1 , 1150 cm -1 , and 810 cm -1 suggest stretching vibration of C-N, C=N, and C-H inplane. These values are in agreement with the reported values elsewhere [34][35][36].…”

Synthesis of NiMn2O4/PANI nanosized composite with increased specific capacitance for energy storage applications

“…The band observed at 1272 cm −1 corresponds to the C–N stretching modes of benzenoid rings and quinoid structures, while peaks around 2886, 770, and 886 cm −1 represent the deformation and vibration of C–H bonds in and out of plane. 33 Upon analysing the FTIR spectrum of the NiMn 2 O 4 /PANI nanocomposite, shifts in certain peaks are evident due to the incorporation of NiMn 2 O 4 nanoparticles. Peaks initially present in NiMn 2 O 4 /PANI at 3410, 2886, and 770 cm −1 have shifted towards higher wavenumbers, specifically at 3440, 2936, and 810 cm −1 .…”

Synthesis and properties of Sulphonated Polystyrene, Their New Composites and IPNs

“…The spectrum in Figure 5. shows the characteristic peak at 1180 cm -1,related to stretching vibration of SO 2 which is the good indication in the sulphonation reactions [19,20]. Also, new absorption bands at 3417, 1068 cm -1 due to vibration of the hydroxyl groups and stretching of O=S=O group, respectively.…”