@article{Mbarki_Ammari_Amor_Meganem_2021, title={Functional groups grafted on poly(vinyl chloride) – evaluation of new modified polymers in metal ions adsorption}, volume={62}, url={https://ichp.vot.pl/index.php/p/article/view/277}, DOI={10.14314/polimery.2017.109}, abstractNote={<p>Poly(vinyl chloride) (PVC) has been subjected to numerous chemical modifications which were undertaken in order to improve its properties, the use of PVC in new applications and understanding of PVC-related phenomena. This work describes the chemical modification of PVC by amino groups (benzylamine and diethylenetriamine) through nucleophilic substitution reactions of its chlorine atoms to obtain P<sub>1</sub> polymer. The modified polymer was subsequently reticulated with dichlorodiethyl ether to obtain P<sub>2</sub> polymer. The obtained polymers were characterized using infrared spectroscopy (FT-IR), elemental analysis (CHN), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), differential thermal analysis (DTA), and X-ray diffraction (XRD). The modified polymers (P<sub>1</sub> and P<sub>2</sub>) were tested for metal ion extraction (cadmium, cobalt, lead, or chromium) using the solid-phase extraction (SPE) method and the inductively coupled plasma atomic emission spectrometry (ICP-AES) technique. Quantitative adsorption measurements were performed using solutions containing 2 • 10<sup>-4</sup>M of heavy metal ions with pH = 3.5–4.5 at a flow rate of 0.6 dm<sup>3</sup>/min. The new extractants based on modified PVC (P<sub>1</sub> and P<sub>2</sub>) were able to remove the negative effects of heavy metals contained in aqueous solutions. For Pb<sup>2+</sup>, the extraction percentage was 98 % using P<sub>1</sub> and 90.3 % using P<sub>2</sub>.</p>}, number={2}, journal={Polimery}, author={Mbarki, F. and Ammari, F. and Amor, A. B. H. and Meganem, F.}, year={2021}, month={Jan.}, pages={109-117} }