A poly (vinyl chloride) functionalization by some amines. Electrical study and inductively coupled plasma study of the extraction of La(III) and Bi(III) by modified PVC polymers
Written by sctunisie no commentsThe aim of this work was to study the structural and electrical properties of a new polymer obtained by functionalization of a commercial poly (vinyl chloride) (PVC) (Mw = 48000) by 1-chloro-2-phenylaminomethyl-6-phenylaminomethylene-cyclohex-1-ene groups and to evaluate the efficiency of two new polymers obtained by functionalization of the same PVC by grafting L-alanine and 1-(2-aminoethyl) piperazine groups to extract some metal cations from aqueous solutions. The structural properties of the polymers were investigated by different analytical methods; namely elemental analysis (EA), infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC) and the electrical properties of the polymer were studied by electrochemical impedance spectroscopy (EIS). The percentage of extraction was determined by inductively coupled plasma-atomic emission spectrometry (ICP-AES). One of the obtained polymers gave an extraction ratio of Bi3+ = 98.77% which highlight the importance of the substitution of chlorine atoms by amino groups.
F. Ammari, M. Kahlaoui, M. Dardouri
Poly (vinyl chloride), functionalization, electrical properties, metal cations, extraction, inductively coupled plasma- atomic emission spectrometry.
Pages 402-408
