Heavy metal pollution is propagating throughout the world with the enlargement of industrial activities. The elimination of heavy metal ions from industrial wastewaters has drawn much attention because of the hazardous effects of the heavy metal ions on different organisms. According to these facts, poly (2, 2, 3, 3- tetracyanocyclopropyl) phenyl acrylate (PTCP) with multi cyanocyclopropane functionalities in the pendant group were prepared by reacting benzoyl peroxide with p-(2,2,3, 3-tetracyanocyclopropyl) phenylacrylate (TCP) monomer. (TCP) monomer was synthesized by reacting cyanogen bromide and malononitrile with p-acryloyloxybenzaldehyde at 0 °C in a short time. The synthesized PTCP momopolymer were examined in heavy metal ions adsorption such as Ni (II), Cu (II), Cr (III) and Zn (II) under competitive and non-competitive conditions in aqueous solutions at different pH. The high adsorption rate (<65 min) was seen. The synthesized polymer and its metal chelates were investigated by thermogravimetric analysis (TGA),Fourier-transform infrared spectroscopy (FT-IR), atomic absorption techniques (AAS), UV-vis spectroscopy and scanning electron microscopy (SEM). Manuscript profile

Polyvinyltetrazole (PVT) is produced from acrylonitrile (AN) monomer by using free-radicalpolymerization and Click Chemistry methods. The resulting polymer with a broad range of tetrazolegroup contents was conveniently synthesized through [3+ 2] azide-nitrile cycloaddition reaction ofnitrile-containing polymer with sodium azide in DMF. The prepared PVT was characterized by13CNMR,FT-IR and UV-Vis spectroscopies. Elemental analysis indicated that approximately 92% ofthe cyano groups on the polymer surface were converted to tetrazolyl groups. The PVT exhibitedexcellent adsorption form et al ions and the maximum adsorption capacity for Pb (II) was2.39mmol/g which are much higher than corresponding literature results. The adsorption processwas described as an ion exchange and chelation interaction mechanisms. The high adsorption rate(<40 min) was seen. The resulting polymer and its metal chelate were characterized by FT-IR,elemental analysis, gravimetry, scanning electronic microscopy (SEM), thermogravimetry analysis(TGA), UV-Vis spectroscopy, and atomic absorption techniques (AAS). All these analyses methodsconfirmed the presence of metal in the polymer-metal complex. Manuscript profile

A simple and easy synthetic route for preparing PP-g-PSt/O-MMt nanocomposite was synthesized using a combination of ring-opening polymerization and reversible addition–fragmentation chain transfer polymerization techniques. Firstly, MAH (maleic anhydride) was reacted with PP (polypropylene) followed by the opening of an anhydride ring with ethanolamine to obtain a hydroxyl group including polypropylene (iPP-OH). Secondly, the produced PP-OH was treated with 4-cyano-4-[(phenylcarbothioyl) sulfanyl] pentanoic acid to synthesize of PP-RAFT macroinitiator. Then, the styrene monomer was grafted onto PP using RAFT approach to produce a well-defined (PP-g-PSt) copolymer. Finally, Polymer/clay nanocomposite was synthesized through a solution intercalation method. The successful synthesis of all materials was proved using FT-IR and 1H NMR spectroscopy. The structural morphology and thermal properties of the grafted copolymer /O-MMT nanocomposite were examined using SEM, TGA, and DSC. This approach employed via the RAFT method is an easy and alternative strategy for synthesizing new materials. Manuscript profile