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Wavelength-Controlled Light-Responsive Polymer Vesicle Based on Se–S Dynamic Chemistry
Ist Teil von
ACS macro letters, 2020-02, Vol.9 (2), p.163-168
Ort / Verlag
United States: American Chemical Society
Erscheinungsjahr
2020
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Wavelength-controlled Se–S dynamic chemistry was put forward recently as a convenient way to regulate the balance of a selenide sulfide exchange reaction. In this paper, we synthesized an asymmetric polymeric amphiphile linked with a Se–S bond and then induced it to self-assemble into vesicles in water. When the visible light was applied to the assembly solution with addition of toluene, Se–S bonds containing vesicles were ruptured. Thus, the wavelength-controlled light responses of relatively stable polymer assembly were accomplished by introduction of the Se–S dynamic covalent bond, and the response mechanism of the Se–S bond in the vesicle was explored by nuclear magnetic resonance (NMR), gel permeation chromatography (GPC), and X-ray photoelectron spectroscopy (XPS). The results indicated that fracture of the Se–S bond led to the dissociation of assembly. Introduction of Se–S dynamic chemistry into the molecular assembly area enriched the light-responsive polymer systems and would bring many potential applications in the future.
Sprache
Englisch
Identifikatoren
ISSN: 2161-1653
eISSN: 2161-1653
DOI: 10.1021/acsmacrolett.9b00983
Titel-ID: cdi_proquest_miscellaneous_2672323908
Format
–
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