Metal‐Ion‐Selective Exchange Resins by Matrix Imprint with Methacrylates

Kuchen, Wilhelm; Schram, Jürgen

doi:10.1002/anie.198816951

Cited by 111 publications

(52 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…527,528 Another approach to the synthesis of metal-MIPs is the initial formation of a complex between the metal ion and polymerizable ligand (functional monomer) which is then polymerized with cross-linker. 529 Polymerizable ligands that have been used include: 1-vinylimidazole, 530 4 0 -methyl-4-vinylbipyridine, 531 MAA, 532 556 and methacryloylamidohistidine. 557 Palladium and uranyl ions have been imprinted using vinylpyridine as functional monomer with a nonpolymerizable ligand.…”

Section: 480mentioning

confidence: 99%

Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003

Andersson²,

et al. 2006

View full text Add to dashboard Cite

Over 1450 references to original papers, reviews and monographs have herein been collected to document the development of molecular imprinting science and technology from the serendipitous discovery of Polyakov in 1931 to recent attempts to implement and understand the principles underlying the technique and its use in a range of application areas. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by papers dealing with fundamental aspects of molecular imprinting and the development of novel polymer formats. Thereafter, literature describing attempts to apply these polymeric materials to a range of application areas is presented.

show abstract

Section: 480mentioning

confidence: 99%

Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003

Andersson²,

et al. 2006

View full text Add to dashboard Cite

show abstract

“…And the time (t 1/2 ) of 50% adsorption needed only about 5 min. It was clear that the SPE process of the present sorbent was faster than most of the traditional ion-imprinted sorbents [6,20,26,27].…”

Section: Effect Of Contact Timementioning

confidence: 99%

Selective enrichment of trace copper(II) from biological and natural water samples by SPE using ion‐imprinted polymer

Zhai

Yang

Chang³

et al. 2008

J of Separation Science

View full text Add to dashboard Cite

A novel Cu(II)-imprinted polymer sorbent was prepared by an ion-imprinted polymer (IIP) technique using (2Z)-N,N'-bis(2-aminoethylic)but-2-enediamide as the functional monomer and pentaerythritol triacylate as a crosslinker. IR, XPS, and elemental analysis techniques were used to confirm the obtained product. Subsequently, when this polymer was used as sorbent in SPE, it exhibited excellent selectivity for template ion from an aqueous solution. Quantitative extraction of Cu(II) was achieved in the pH range of 4-7. The time needed to extract each sample was less than 30 min by the batch method. The distribution ratio (D) values of IIP for Cu(II) were greatly larger than that for other ions. At optimal pH value, the maximum extraction capacity of IIP and nonimprinted polymer (NIP) was found to be 29.8 and 7.0 mg/g, respectively. The adsorption behavior of Cu(II) on the sorbents could be described by Langmuir adsorption isotherm equation. The feasible flow rate of Cu(II)-containing solution for quantitative extraction onto the column packed with IIP was 1-4 mL/min, whereas for elution it was less than 1 mL/min. The developed method was successfully applied to the separation and enrichment of trace Cu(II) in biological and natural water samples with satisfactory results.

show abstract

“…Such an experiment is a useful method to evaluate the imprinting effect, and has commonly been carried out in studies concerning metal-imprinted resin. [8][9][10][11][12] As can be seen in Table 1, the imprinted microspheres adsorbed the corresponding guest ions more effectively than did the unimprinted ones; the imprinting effect was thus clearly shown. The adsorption percentages at pH 5.6 were larger than those at pH 4.9, suggesting that the carboxyl ANALYTICAL SCIENCE'S OCTOBER 1992, VOL.…”

Section: Resultsmentioning

confidence: 99%

Metal Ion-Imprinted Microspheres Prepared by Reorganization of the Coordinating Groups on the Surface

Tsukagoshi²,

Maeda³

et al. 1992

ANAL. SCI.

View full text Add to dashboard Cite

the Editor Keywords Imprinting polymerization, carboxylated microspheres, seeded emulsion polymerization, metal ion, selective adsorption of copper(II) and nickel (II) adsorption ofThe development of new materials for separation and concentration is a key step for progress in analytical science. A molecular imprinting technique) is one promising way to prepare highly-selective host polymers, since it requires neitherr precise molecular design nor multi-step procedures for host preparation. The imprinting technique is thus a practical method, in contrast with "supramolecular design".2,3 However, it has some fundamental problems: for example, the inapplicability to use a water-soluble substance as a guest and the need to grind and sieve the formed polymer before use. These problems result from the fact that the host preparation was made from solution . or bulk polymerization using an organic solvent or organic monomer, respectively. On the other hand, polymer microsphere and its aqueous dispersion have become of interest as highly-functional materials.4 A microsphere of submicron diameter is characterized by a large surface area, comparable with porous glass beads, and show a high reactivity near the surface.We now propose a new technique in which molecular imprinting is conducted on the microsphere surface; the imprinted microsphere is synthesized by seeded emulsion polymerization in water. Complexation between guest molecule and functional groups on the microsphere surface takes place through the reorganization of the groups while adapting to the imprinted structure. The new technique is, in principle, applicable to water-soluble substances, such as biological components; the polymer beads are well defined and uniform. Grinding and sieving are not necessary. In addition, this technique would improve the complexation behavior (such as capacity, reaction rate, and selectivity) owing to the unique features of sub-micron spheres.In this study, a heavy metal ion was adopted as a guest and a metal ion-imprinted structure was constructed on the carboxylated microsphere surfaces with the aid of the interaction between the metal ion and the carboxyl groups.The adsorption of metal ions onto the microsphere was examined and the imprinting effect was characterized. ExperimentalThe metal ion-imprinted microsphere was prepared according to Scheme 1. Seed emulsion (2) was obtained by the polymerization of styrene (S) (20.55 g), butyl acrylate (BA) (2.71 g), and methacrylic acid (MAA) (1.64 g), in water (75 g) at pH 2.2 (125 mg of K2S208 as initiator, 70° C, 7 h). The polymerization mixture was then brought to room temperature. Divinylbenzene (DVB) (29.86 g), BA (2.9 g), and water (95 g) were added and the emulsion was left at 2° C for 24 h at pH 9.5. The pH of the mixture was then lowered to 5.0, and a portion (8 cm3) of the emulsion was combined with 40 ml of a metal ion solution (0.01 mol dm-3 Cu(II) or Ni(II)) to achieve complexation between the metal ion and the carboxyl group on the surface (4). The DVB-containing emul...

show abstract

Metal‐Ion‐Selective Exchange Resins by Matrix Imprint with Methacrylates

Cited by 111 publications

References 9 publications

Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003

Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003

Selective enrichment of trace copper(II) from biological and natural water samples by SPE using ion‐imprinted polymer

Metal Ion-Imprinted Microspheres Prepared by Reorganization of the Coordinating Groups on the Surface

Contact Info

Product

Resources

About