A hyperbranched polymer synthetic strategy for the efficient fixation of metal species within nanoporous structures: Application in automotive catalysis

Papavasiliou, Aggeliki; Deze, E.G.; Papageorgiou, Sergios K.; Sideratou, Zili; Boukos, Nikos; Poulakis, Evangelos; Philippopoulos, C.J.; Glisenti, Antonella; Everbroeck, Tim Van; Cool, Pegie; Katsaros, Fotios K.

doi:10.1016/j.cej.2021.129496

Cited by 11 publications

(3 citation statements)

References 72 publications

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“…Papavasiliou et al have recently published the 1 H and 13 NMR spectra of Trilon-P and determined the carboxymethyl group content of this polymer from inverse gated 13 C spectra. 42 Their results show little difference compared to ours concerning the spectra, given, especially, that the overall shape of the spectrum as well as the chemical shift values depend strongly on the pH of the medium. The methylcarboxylate content given by the authors (5.07 mmol per gram) yields a functionalization of f = 0.62 if the polymer is in the sodium salt form, calculating with a molar weight of 123 g mol −1 for 100% of substitution.…”

Section: Size Of the Macromolecules Inmentioning

confidence: 47%

Section: Resultsmentioning

confidence: 68%

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Synthesis and Characterization of Carboxymethylated Polyethylenimines

Novák,

Miklósi,

Nyul

et al. 2023

ACS Appl. Polym. Mater.

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As potential paramagnetic metal ion complexing macromolecular ligands, carboxymethylated polyethylenimines (CM-PEIs) were successfully prepared from polyethylenimine (PEI) with 2-chloroacetic acid (CA) in an alkaline medium. SEC, pH-potentiometry, DLS, and multinuclear and multidimensional NMR techniques were used to determine the degree of functionalization, size, and possible structure of the modified polymers. By varying the amount of CA, functionalization degrees of 7–67% relative to the theoretical maximum were achieved. Diffusometry shows that the PEI and CM-PEIs are highly hydrated. The CM-PEIs are larger molecules than the parent PEI, although their hydrodynamic size decreases with higher degrees of functionalization. CM-PEIs are isostable except for the most highly substituted derivative. CM-PEIs form complexes with Cu(II) and efficiently decrease the rate of the copper-mediated oxidation of ascorbic acid. The good affinity toward cations of CM-PEI functionalized at 67% is further demonstrated by its capacity to bind even sodium ions. These properties show that CM-PEIs are promising metal-chelating polymers for diagnostic or theranostic purposes.

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Section: Size Of the Macromolecules Inmentioning

confidence: 47%

Section: Resultsmentioning

confidence: 68%

Synthesis and Characterization of Carboxymethylated Polyethylenimines

Novák,

Miklósi,

Nyul

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

show abstract

“…In recent years, the research on hyperbranched polymers (hyperbranched polymers, HBP) enjoyed in-depth and extensive attention. [1][2][3] Compared with other common high molecular polymers, hyperbranched polymers have the characteristics of low viscosity, high solubility, miscibility, and high reactivity. Moreover, hyperbranched polymers, as a special kind of highly branched polymers, have a unique macromolecular structure, low melt viscosity, multifunctionality, and easy preparation properties.…”

Section: Introductionmentioning

confidence: 99%

New Hyperbranched Polysiloxanes Made by Thiol‐yne Click Reaction: Lanthanide Complexation and Applications in Bioimaging

Ding

Gai

Wang

et al. 2021

Macro Chemistry & Physics

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Hyperbranched polymers, as a unique highly branched polymers with low viscosity, simple synthesis, mixability and high reactivity, have received intensive attention and applied to many fields of resin modification, catalysts, and film materials. In this paper, hyperbranched polymers (P1 and P2) are designed and developed by the thiol-yne "click" reaction with controlled molar ratio of reactant. After that, lanthanide ions are coordinated with P1 and P2 to prepare new hyperbranched polymer fluorescent products (P1-Ln 3+ and P2-Ln 3+ ). P1-Ln 3+ and P2-Ln 3+ exhibit excellent fluorescent properties, superb stability, and economic feasibility. Moreover, bioimaging experiments clearly exhibit that P1-Ln 3+ and P2-Ln 3+ has great potential in further biological applications.

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Synergistic activation of persulfate by FeS@SBA-15 for imidacloprid degradation: Efficiencies, activation mechanism and degradation pathways

Jiang

Zhang

et al. 2023

Environ Sci Pollut Res

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A hyperbranched polymer synthetic strategy for the efficient fixation of metal species within nanoporous structures: Application in automotive catalysis

Cited by 11 publications

References 72 publications

Synthesis and Characterization of Carboxymethylated Polyethylenimines

Synthesis and Characterization of Carboxymethylated Polyethylenimines

New Hyperbranched Polysiloxanes Made by Thiol‐yne Click Reaction: Lanthanide Complexation and Applications in Bioimaging

Synergistic activation of persulfate by FeS@SBA-15 for imidacloprid degradation: Efficiencies, activation mechanism and degradation pathways

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