Metal-imprinted microsphere prepared by surface template polymerization and its application to chromatography

Masahiro Yoshida, Yasuo Hatate, Kazuya Uezu, Masahiro Goto, Shintaro Furusaki

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

A metal ion-imprinted microsphere was prepared by surface molecular template polymerization. Trimethylolpropane trimethacrylate (TRIM), zinc ions, 1,12-dodecanediol-O, O′-diphenyl phosphonic acid (DDDPA) were used as a crosslinking agent, an imprint molecule, and a functional host molecule. The Zn(II)-imprinted microspheres, which are spherically well-defined particles, were prepared by using water-in-oil-in-water (W/O/W) multiple emulsions. The combination of TRIM and DDDPA serves to align the recognition sites resulting in better template sites produced on the polymer surface. We firstly conducted diagnostic zinc- and copper-ion adsorption tests with the Zn(II)-imprinted and unimprinted microspheres in order to make an assessment on the effectiveness of the molecular imprinting technique. Further, the metal-imprinted microspheres were applied to the column operation. The separation and recovery of metals were carried out by an adsorption column packed with the Zn(II)-imprinted microspheres. This performance was compared to that of commercial chelating resins that possess similar phosphoric functional groups. The Zn(II)-imprinted polymer shows an extremely high selectivity to the imprinted zinc ions compared to that of the commercial chelating resin.

Original languageEnglish
Pages (from-to)689-696
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume38
Issue number4
DOIs
Publication statusPublished - Feb 15 2000

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Chromatography
Microspheres
Metals
Polymerization
Zinc
Ions
Chelation
Polymers
Resins
Adsorption
Molecules
Acids
Water
Emulsions
Crosslinking
Functional groups
Metal ions
Copper
Oils
Recovery

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

Metal-imprinted microsphere prepared by surface template polymerization and its application to chromatography. / Yoshida, Masahiro; Hatate, Yasuo; Uezu, Kazuya; Goto, Masahiro; Furusaki, Shintaro.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 38, No. 4, 15.02.2000, p. 689-696.

Research output: Contribution to journalArticle

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