Use of poly(vinylidene fluoride-<i>co</i>-vinyl dimethylphosphonate) copolymers for efficient extraction of valuable metals

Wehbi, Mohammad; Bourgeois, Damien; Améduri, Bruno

doi:10.1039/c9py00624a

Cited by 7 publications

(7 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the gaseous nature of VDF, all copolymerizations were performed in high pressure autoclave. The experimental procedures used for the synthesis of those copolymers have been described in details in our previous publications [ 23,24 ] and are summarized in the Electronic 3 Supporting Information (ESI) section of this paper. The results and analyses of the obtained poly(VDF‐ co ‐VDMP) copolymers (P1–P3) are listed in Table 1 and in the ESI.…”

Section: Resultsmentioning

confidence: 99%

“…Radical copolymerization reactions of VDMP with VDF were carried out as reported in the recent publications. [ 23,24 ]…”

Section: Methodsmentioning

confidence: 99%

“…Just a while ago, our team studied the potential application of phosphonate functional fluorinated polymers for selective extraction of rare earth metals [ 23 ] or lanthanides from aqueous media. [ 24 ] The rising interest in phosphorus compounds is due to their interesting properties such as high acidity, [ 25 ] anticorrosion, [ 26 ] adhesion, [ 27 ] flame retardancy, [ 28 ] proton exchange membranes, [ 29–33 ] biomedical applications [ 34 ] and complex formation.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Solid Polymer Electrolytes from Copolymers Based on Vinyl Dimethyl Phosphonate and Vinylidene Fluoride

Bai

Webhi

Dolphijn

et al. 2020

Macro Chemistry & Physics

Self Cite

View full text Add to dashboard Cite

Solid polymer electrolytes are prepared by mixing various amounts of lithium bis(trifluoromethanesulfonyl)imide with poly(vinylidene fluoride‐co‐vinyl dimethyl phosphonate) statistical copolymers with different compositions. Such copolymers are obtained by conventional radical copolymerization of vinylidene fluoride (VDF) with vinyl dimethyl phosphonate (VDMP) initiated by peroxides. A morphological study of the obtained solid polymer electrolytes (SPEs) shows that only samples prepared from the copolymer with the lower amount of VDMP (16 mol%) result in the formation of homogeneous electrolytes while aggregates of lithium salts are observed for the other copolymers. The best ionic conductivity values are accordingly observed for the copolymers with the lower VDMP amount and are reaching 5 × 10−3 mS cm−1 at 100 °C. The dependence of the ionic conductivity versus temperature suggests that the ionic conductivity is controlled by the motion of polymer segments. Indeed, the ionic conductivity can be increased by adding a small amount of trimethylphosphate plasticizer and can reach 1.9 × 10−2 mS cm−1 at 20 °C. Finally, the prepared SPEs exhibit a high electrochemical stability and a good resistance to flame because of the presence of fire‐retardant phosphate groups in their structure.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Radical copolymerization reactions of VDMP with VDF were carried out as reported in the recent publications. [ 23,24 ]…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Solid Polymer Electrolytes from Copolymers Based on Vinyl Dimethyl Phosphonate and Vinylidene Fluoride

Bai

Webhi

Dolphijn

et al. 2020

Macro Chemistry & Physics

Self Cite

View full text Add to dashboard Cite

show abstract

“…Preparation of Poly(vinylidene fluoride-co-vinyl dimethylphosphonate) Copolymers. In a recent study, our group 77 reported the synthesis of a novel phosphorus functional PVDF from the radical copolymerization of VDF with commercially available vinyl dimethyl phosphonate (VDMP). This copolymerization was attempted in the presence of various initiators: both tert-amyl peroxy-2-ethylhexanoate and tert-butyl peroxypivalate failed while 2,5dimethyl-2,5-bis(tert-butylperoxy)hexane successfully led to copolymer in high yields (81%), but with low molar masses.…”

Section: Telomerization Of Fluorinated Alkenesmentioning

confidence: 99%

Phosphorus-Containing Fluoropolymers: State of the Art and Applications

Wehbi

Mehdi

Négrell

et al. 2019

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Several strategies to synthesize fluorinated (co)polymers containing phosphorus groups and their applications are reviewed. First, original fluoromonomers bearing phosphorus atoms are supplied from relevant routes. They may possess fluorinated atoms linked to the ethylenic carbon atoms with different structures, such as F 2 CCF-or H 2 CC(CF 3 )-and a phosphonated ω-function adjacent to an aliphatic or aromatic linker, while other monomers display a difluoromethylene dialkylphosphonate end group such as -CF 2 −P(O)(OR) 2 . Then, fluorinated copolymers were obtained according to various pathways: (i) by radical homopolymerization of monomers containing both fluorine and phosphorus atoms, (ii) by direct radical copolymerization of fluoromonomers and phosphorus-based monomers, or (iii) by chemical modification of fluorinated copolymers with phosphorus-based reactants. Conventional radical and controlled (or reversible deactivation radical polymerization, RDRP) copolymerization have also been explored. As for the chemical change of halogenated polymers, either conventional organic reactions (e.g., Arbuzov reaction from a chlorine, iodine, or bromine atom) or radiation grafting with specific monomers led to graft copolymers composed of a fluorinated backbone and phosphonated grafts. This second part also details aliphatic and aromatic fluorophosphorous copolymers in which dialkylphosphonates or phosphonic acids are reported. Finally, since fluorine and phosphorus atoms bring complementary relevant properties (low refractive index and dielectric constants, chemical inertness, high electrochemical, soils, and heat resistances, electroattractivity from fluorine atoms and high acidity, complexation, anticorrosion, flame retardant, and biomedical properties from phosphorus ones), synergetic characteristics have been targeted. These properties allow such fluoro-phosphorus (co)polymers to be used as novel materials involved in various applications such as polymer exchange membranes for fuel cells, self-etching adhesives for dental materials, adhesion promoters, flame retardants, polymer blends, and anticorrosive coatings.

show abstract

“…Both teams indicated that the hydrophobicity of the copolymers (triggered from the fluorine atoms) led to an easier separation and material retrieval from the solution. Various investigations deal with the functionalization of PVDF-based membranes by multiple functional groups for wastewater treatment [ 49 , 50 , 51 , 52 ], but only one recent study has reported the prominence of phosphorus functional PVDF involved in Rare Earth metal extraction in strong acidic media [ 53 , 54 ].…”

Section: Introductionmentioning

confidence: 99%

Solid–Liquid Europium Ion Extraction via Phosphonic Acid-Functionalized Polyvinylidene Fluoride Siloxanes

et al. 2020

Self Cite

View full text Add to dashboard Cite

Novel triethoxysilane and dimethyl phosphonate functional vinylidene fluoride (VDF)-containing terpolymers, for potential applications in Eu ion extraction from water, were produced by conventional radical terpolymerization of VDF with vinyltriethoxylsilane (VTEOS) and vinyldimethylphosphonate (VDMP). Although initial attempts for the copolymerization of VTEOS and VDMP failed, the successful terpolymerization was initiated by peroxide to lead to multiple poly(VDF-ter-VDMP-ter-VTEOS) terpolymers, that had different molar percentages of VDF (70–90 mol.%), VTEOS (5–20 mol.%) and VDMP (10 mol.%) in 50–80% yields. The obtained terpolymers were characterized by 1H, 19F, 29Si and 31P NMR spectroscopies. The crosslinking of such resulting poly(VDF-ter-VDMP-ter-VTEOS) terpolymers was achieved by hydrolysis and condensation (sol–gel process) of the triethoxysilane groups in acidic media, to obtain a 3D network, which was analyzed by solid state 29Si and 31P NMR spectroscopies, TGA and DSC. The thermal stability of the terpolymers was moderately high (up to 300 °C under air), whereas they display a slight increase in their crystallinity-rate from 9.7% to 12.1% after crosslinking. Finally, the dimethyl phosphonate functions were hydrolyzed into phosphonic acid successfully, and the europium ion extraction capacity of terpolymer was studied. The results demonstrated a very high removal capacity of Eu(III) ions from water, up to a total removal at low concentrations.

show abstract

Use of poly(vinylidene fluoride-co-vinyl dimethylphosphonate) copolymers for efficient extraction of valuable metals

Abstract: The radical copolymerisation of vinylidene fluoride (VDF) with vinyl dimethyl phosphonate (VDMP) initiated by various kinds of initiators is presented.

Cited by 7 publications

References 55 publications

Solid Polymer Electrolytes from Copolymers Based on Vinyl Dimethyl Phosphonate and Vinylidene Fluoride

Solid Polymer Electrolytes from Copolymers Based on Vinyl Dimethyl Phosphonate and Vinylidene Fluoride

Phosphorus-Containing Fluoropolymers: State of the Art and Applications

Solid–Liquid Europium Ion Extraction via Phosphonic Acid-Functionalized Polyvinylidene Fluoride Siloxanes

Contact Info

Product

Resources

About