A poly (vinyl chloride) functionalized by diethylenetriamine, 2,6-bis-(chloromethyl) pyridine and a crowded aromatic amine. Inductively coupled plasma study of the extraction of La(III) and Bi(III) by modified PVC polymers

Ammari, Fayçel; Dardouri, Mokhtar; Meganem, Faouzi

doi:10.1080/19443994.2015.1099475

Cited by 3 publications

(4 citation statements)

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“…By comparison with the diagrams of free polymers, there is a slight shift in the temperatures of the various transformations following this complexation (Figs 4, 5). Likewise an endothermic peak around 275°C for (P 4 -Cd 2+ ) which has a slight transformation compared to P 4 -Li + has been attributed to the decomposition of the polymer [14,15].…”

Section: Dta Analysismentioning

confidence: 97%

“…In this work, given that the pollution of the aquatic environment by heavy metals from industrial and consumer waste is considered as a threat to aquatic organisms and to human health, we focused our work in laboratory on the synthesis of new materials from PVC in order to extract metal cations. Several polymer-based products have been synthesized [13][14][15][16][17][18]. Several chemical reactions have been applied such as substitution, elimination, reduction and degradation.…”

Section: Modyfikacja Poli(chlorku Winylu) Aminami Aromatycznymi: Zastosowanie Wybranych Kationów Metali Do Ekstrakcjimentioning

confidence: 99%

“…The retention of metal cations can al`so be explained by the presence of an electron-rich π system (benzene ring), this type of interaction has been explained by the theory of non-covalent cation-π interactions [14][15][16][17][18][19].…”

Section: Proposed Structures Of P 4 -Li +mentioning

confidence: 99%

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Modification of poly(vinyl chloride) by aromatic amines: application to the extraction of some metal cation

Mabrouki

Ammari

2021

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The reaction of poly(vinyl chloride) (PVC) with various aliphatic amines in 1,4-dioxane has been studied. These reactions led to the formation of new polymers (PVC-L), which were characterized by different spectroscopic methods: differential thermal analysis (DTA) and infrared. The extraction percentages were determined by comparing the initial conductivity of the aqueous solution containing the studied metal with the final conductivity of the aqueous solution at extraction equilibrium. One of the obtained polymers gave an extraction rate of 82.05% for Li+, which underlines the importance of the substitution of chlorine atoms by diethylenetriamine groups. A kinetic study of the extraction shows that the optimal duration of extraction was obtained with the polymer most substituted by diethylenetriamine groups.

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Section: Dta Analysismentioning

confidence: 97%

Section: Modyfikacja Poli(chlorku Winylu) Aminami Aromatycznymi: Zastosowanie Wybranych Kationów Metali Do Ekstrakcjimentioning

confidence: 99%

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Modification of poly(vinyl chloride) by aromatic amines: application to the extraction of some metal cation

Mabrouki

Ammari

2021

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“…As noted above, PVC readily undergoes substitution reactions with nucleophiles. Previous work with PVC has primarily utilized S-, N-and O-based nucleophiles to generate materials for targeted applications such as catalysis, [34][35][36][37][38][39][40][41] separations, [42][43][44][45][46][47] metal-complexation, [48][49][50][51][52][53][54][55] biodegradable polymers, 56,57 thermally stable and photostable polymers, 58,59 and antimicrobial polymers. 59,60 In their 2010 and 2015 reviews, Moulay outlines many transformations that occur via a heterolytic, S N 2 mechanism.…”

Section: Heterolytic Dechlorinationmentioning

confidence: 99%