Copolymerization of pyrrole and vinyl acetate in aqueous and aqueous/nonaqueous media

Abstract

Pyrrole/(vinyl acetate) copolymer was prepared in aqueous and aqueous/nonaqueous media by the copolymerization of vinyl acetate and pyrrole using FeCl3/(NH4)2S2O8 and FeCl3/(benzoyl peroxide) as oxidants in the presence of various surfactants such as sodium dodecylbenzenesulfonate, poly(ethylene glycol), and hydroxypropylcellulose. The copolymer was characterized in terms of conductivity, morphology, particle size, glass transition temperature, and molecular structure. The results indicated that the morphology, particle size, glass transition temperature, and conductivity of the product were dependent on the types of surfactant and solvent media used. The molecular structure and glass transition temperature of the product were studied by Fourier‐transform infrared spectroscopy and differential scanning calorimetry, respectively. J. VINYL ADDIT. TECHNOL., 2009. © 2009 Society of Plastics Engineers

Fixed-bed column removal of chemical oxygen demand, anions, and heavy metals from paper mill wastewater by using polyaniline and polypyrrole nanocomposites on carbon nanotubes

“…The reaction was allowed to proceed for 5 h at room temperature. Afterward, the resulting polymer was filtered off on filter paper to remove the oligomers and impurities, then washed several times with deionized water and dried in an oven at about 60°C for 24 h .…”

“…The insolubility in common solvents and the infusibility of conducting polymers, in general, make them poorly processable, either by solution techniques or by melt processing methods . Improving the properties of these materials can be achieved either by forming copolymers or by preparing composites and blends with commercially available polymers or inorganic materials, which offer better mechanical and optical properties, stability, and processability . The commercial applications are based on the promise of a novel combination of light weight, processability, and electrical conductivity.…”

Synthesis of Processable Conducting Polyaniline Nanocomposite Based on Novel Methodology

“…Improvement of these material properties can be achieved by forming copolymers, composites, or blends with commercially available polymers or with inorganic materials which offer better mechanical and optical properties, stability, process ability [19][20][21][22][23][24][25].…”

“…The insolubility in common solvents and infusibility of conducting polymers, in general, make them poorly processable, either by a solution technique or by melt processing methods [17,18]. Improvement of these material properties can be achieved by forming copolymers, composites, or blends with commercially available polymers or with inorganic materials which offer better mechanical and optical properties, stability, process ability [19][20][21][22][23][24][25].…”