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Erschienen in: Journal of Polymer Research 4/2019

01.04.2019 | ORIGINAL PAPER

Dual responsive spiropyran-ended poly(N-vinyl caprolactam) for reversible complexation with metal ions

Erschienen in: Journal of Polymer Research | Ausgabe 4/2019

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Abstract

With the spiropyran-containing compound as the initiator, dual responsive spiropyran-ended poly(N-vinyl caprolactam) (SP-PNVCL) was synthesized by atom transfer radical polymerization. The structure of the resulting polymer was characterized by 1H NMR and gel permeation chromatography, and the polymer had both reversible light-responsive and thermo-sensitive behaviors. Metal ions could be bound between merocyanine formed by photoisomerization of spiropyran and the amino group of N-vinyl caprolactam unit through synergetic coordination. The complexation of SP-PNVCL with several metal ions was investigated by UV-Vis absorption spectroscopy, and it was found that SP-PNVCL might be used as a potential recognition probe for Fe2+, accompanied by obvious color change from colorless to brown by naked eye. The detection limit and photo-reversible recyclable behaviors of SP-PNVCL for Fe2+ were also investigated in details. The kind of spiropyran-ended poly(N-vinyl caprolactam) had great application potential in environment protection and biological area.

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Metadaten
Titel
Dual responsive spiropyran-ended poly(N-vinyl caprolactam) for reversible complexation with metal ions
Publikationsdatum
01.04.2019
Erschienen in
Journal of Polymer Research / Ausgabe 4/2019
Print ISSN: 1022-9760
Elektronische ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-019-1747-z

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