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Polymeric pseudo-crown ether for cation recognition via cation template-assisted cyclopolymerization

Author

Listed:
  • Takaya Terashima

    (Graduate School of Engineering, Kyoto University)

  • Minami Kawabe

    (Graduate School of Engineering, Kyoto University)

  • Yuichiro Miyabara

    (Graduate School of Engineering, Kyoto University)

  • Hiroaki Yoda

    (Graduate School of Engineering, Kyoto University)

  • Mitsuo Sawamoto

    (Graduate School of Engineering, Kyoto University)

Abstract

Cyclopolymerization is a chain polymerization of bifunctional monomers via alternating processes of intramolecular cyclization and intermolecular addition, to give soluble linear polymers consisting of in-chain cyclic structures. Though cyclopolymers comprising in-chain multiple large rings potentially show unique functionality, they generally require the elaborate design of bifunctional monomers. Here we report cation template-assisted cyclopolymerization of poly(ethylene glycol) dimethacrylates as an efficient strategy directly yielding polymeric pseudo-crown ethers with large in-chain cavities (up to 30-membered rings) for selective molecular recognition. The key is to select a size-fit metal cation for the spacer unit of the divinyl monomers to form a pseudo-cyclic conformation, where the two vinyl groups are suitably positioned for intramolecular cyclization. The marriage of supramolecular chemistry and polymer chemistry affords efficient, one-pot chemical transformation from common chemical reagents with simple templates to functional cyclopolymers.

Suggested Citation

  • Takaya Terashima & Minami Kawabe & Yuichiro Miyabara & Hiroaki Yoda & Mitsuo Sawamoto, 2013. "Polymeric pseudo-crown ether for cation recognition via cation template-assisted cyclopolymerization," Nature Communications, Nature, vol. 4(1), pages 1-9, October.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3321
    DOI: 10.1038/ncomms3321
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