Poly(vinyl chloride)-supported triazoles grafted onto calix[4]arene for chromium ions extraction

Said, Ammar; Dardouri, Mokhtar; Ammari, Fayçel; Ouerghui, Abid; Power, Nicholas and Meganem, Faouzi (2021). Poly(vinyl chloride)-supported triazoles grafted onto calix[4]arene for chromium ions extraction. Polimery, 66(11-12) pp. 611–618.

DOI: https://doi.org/10.14314/polimery.2021.11.6

Abstract

A new suitable material was synthesized using click reaction between dialkynyl-p-tert-butylcalix[4]arene and poly(vinyl chloride) azide (PVC-N₃). This novel dialkynyl-p-tert-butylcalix[4]arene with triazole groups grafted onto PVC polymer (PVC-0.75CX[4]) has an excellent extraction capability for chromium ions from aqueous solutions. It shows a unique ability to extract chromium (VI) ions from aqueous solutions, thanks to the soft cavity, the presence of π-triazole rings and hydrogen bonds. Cr (VI) ion sorption capacity is 95.5% at pH = 3.

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