Metal-imprinted microsphere prepared by surface template polymerization with W/O/W emulsions

Kazuya Uezu, Hiroki Nakamura, Masahiro Goto, Fumiyuki Nakashio, Shintaro Furusaki

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)


    A Zn(II)-imprinted microsphere is prepared by surface template polymerization with W/OAV emulsions. Dioleyl phosphoric acid, which has two long alkyl chains in the hydrophobic moiety, and divinylbenzene were employed as a functional host and a cross-linking agent, respectively. In order to create a spherical imprinted polymer, composition of the external aqueous phase in the W/O/W emulsion is a key factor: the value of the ionic strength to prevent shrinking of emulsions during polymerization and the choice of the water-soluble surfactant for stabilizing the spherical W/O emulsion are important. The metal-imprinted beads exhibit a high selectivity towards target zinc ions over copper ions. The novel preparation technique is very useful for an industrial application because it can easily control the particle size between 10 and 100 μn.

    Original languageEnglish
    Pages (from-to)262-267
    Number of pages6
    Issue number3
    Publication statusPublished - 1999

    All Science Journal Classification (ASJC) codes

    • General Chemistry
    • General Chemical Engineering


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