Functionalized polymer foams as metal ion chelating agents with rapid complexation kinetics

Abstract

Foams prepared from vinylbenzyl chloride and crosslinked with divinylbenzene were functionalized with trialkylphosphite and tetralkylvinylidene diphosphonate. It was determined that the foams could be uniformly functionalized. Batch studies with the functionalized foams show that high levels of metal ion complexation can be achieved. Foams may therefore offer an important alternative to beads for rapid complexation reactions due to their highly porous structure.

Poly(vinylbenzyl chloride-co-divinyl benzene) polyHIPE monolith-supported o-hydroxynaphthaldehyde propylenediamine Schiff base ligand complex of copper(ii) ions as a catalyst for the epoxidation of cyclohexene

“…31,35,36 These emulsion-templated, interconnected, and open-cell-structured highly porous monoliths 29 are found to be useful in various applications such as supports for catalysts, 6,[37][38][39][40][41] recovery of residual oils, 42 media for the storage of gases, 43 or as an ion exchanger for the separation of metal ions. 21,44 The nanoparticles supported on polyHIPE monoliths are more efficient 5,45 due to better ow and mass transport properties of monoliths, 6,[46][47][48][49][50][51] which is well suited for catalysis. 52 The surface-functionalized porous polyHIPE monoliths are also found to be useful in solid-phase syntheses and as a reagent scavenger.…”

Acrylic‐Acid‐Functionalized PolyHIPE Scaffolds for Use in 3D Cell Culture

“…Sevsek and Krajnc demonstrated that methacrylic acid could be incorporated, again adding the co‐monomer via the oil phase. Other groups have also added 4‐vinylbenzyl chloride (VBC) into the oil phase to deliver pendent benzyl chloride functionality …”

Acrylic Acid “Reversed” PolyHIPEs

“…[8] There are descriptions of preparing and utilizing styrene-based polyHIPEs. Examples include the separation of heavy metals, [9] air filtration, [10] precursors for reactive species, [11] and biocatalyst supports. [12] These materials can be chemically functionalised via aromatic substitution [11] or via grafting to unreacted double bonds of the crosslinker (divinylbenzene).…”